Class 12 Chemistry Chapter 2 Online Test – Solutions

Class 12 Chemistry Chapter 2 Online Test 2027: हेलो बच्चों, Class 12 Chemistry के Chapter 2 Solutions (विलयन) का Online Test यहां उपलब्ध है। इस Chapter Wise Test के माध्यम से विद्यार्थी विलयन से संबंधित महत्वपूर्ण प्रश्नों का अभ्यास कर सकते हैं और अपनी तैयारी का मूल्यांकन कर सकते हैं।
इस अध्याय में Types of Solutions, Concentration of Solutions, Molarity, Molality, Mole Fraction, Raoult’s Law, Colligative Properties और Osmotic Pressure जैसे महत्वपूर्ण Topics शामिल हैं।
देखें इस पोस्ट में क्या-क्या है -
Class 12 Chemistry Chapter 2 Online Test 2027

Chemistry Board Exam की तैयारी के लिए Concepts के साथ-साथ Numerical Questions का अभ्यास भी जरूरी है। नीचे दिए गए Online Test को Attempt करके विद्यार्थी अपनी तैयारी Check कर सकते हैं।

                
                
                
                    
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                    12th Chemistry Chapter 2 Online Test
                    तैयारी में दम है तो 25 मे से 22 सही कर के दिखाओ तो

                    
                    
                    
                    
                    
                    
                    
                    
                    
                

                                    
                                    
                                        
                                        
                                            
                                            
                                        
                                    
                                  

                    
                    
                    1 / 25
                    
                        
                        
                                Camphor in Nitrogen gas is an example of:

                            
                            
                        
            
                

                

                Gas in solid solution

            
            
                

                

                Liquid in gas solution

            
            
                

                

                Gas in gas solution

            
            
                

                

                Solid in gas solution

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    2 / 25
                    
                        
                        
                                Ebullioscopic constant is also known as:

                            
                            
                        
            
                

                

                Freezing point constant

            
            
                

                

                Gas constant

            
            
                

                

                None of these

            
            
                

                

                Molal elevation constant

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    3 / 25
                    
                        
                        
                                For an ideal solution, the volume change on mixing is:

                            
                            
                        
            
                

                

                Positive

            
            
                

                

                Negative

            
            
                

                

                Infinite

            
            
                

                

                Zero

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    4 / 25
                    
                        
                        
                                If a solute undergoes association in solution, the van't Hoff factor (i) is:

                            
                            
                        
            
                

                

                i=1

            
            
                

                

                i&gt;1

            
            
                

                

                i=0

            
            
                

                

                i&lt;1

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    5 / 25
                    
                        
                        
                                An example of an azeotropic mixture with maximum boiling point is:

                            
                            
                        
            
                

                

                H2O+c2H5OH

            
            
                

                

                C2H6+CH3OH

            
            
                

                

                None of these

            
            
                

                

                H2O+HCl

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    6 / 25
                    
                        
                        
                                The unit of molar conductivity is:

                            
                            
                        
            
                

                

                Ohm cm^2 mol^-1

            
            
                

                

                Ohm cm mol^-1

            
            
                

                

                Ohm^-1 cm^-2 mol

            
            
                

                

                Ohm^-1 cm^2 mol^-1

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    7 / 25
                    
                        
                        
                                The molality of pure water is:

                            
                            
                        
            
                

                

                50.5

            
            
                

                

                18

            
            
                

                

                100

            
            
                

                

                55.5

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    8 / 25
                    
                        
                        
                                Which of the following shows a negative deviation from Raoult's law?

                            
                            
                        
            
                

                

                Acetone + Ethanol

            
            
                

                

                Benzene + Toluene

            
            
                

                

                Water + Ethanol

            
            
                

                

                Chloroform + Acetone

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    9 / 25
                    
                        
                        
                                The molarity of a solution containing 4g of \(NaOH\) in 250ml of solution is:

                            
                            
                        
            
                

                

                0.2 M

            
            
                

                

                0.1 M

            
            
                

                

                0.5 M

            
            
                

                

                0.4 M

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    10 / 25
                    
                        
                        
                                Which of the following is a characteristic of an ideal solution?

                            
                            
                        
            
                

                

                ∆Hmix=0

            
            
                

                

                ∆Vmix=0

            
            
                

                

                Obeys Raoult's law

            
            
                

                

                All of the above

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    11 / 25
                    
                        
                        
                                Henry's Law is related to:

                            
                            
                        
            
                

                

                Pressure and volume

            
            
                

                

                Temperature and pressure

            
            
                

                

                Volume and temperature

            
            
                

                

                Solubility of gas in liquid

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    12 / 25
                    
                        
                        
                                The number of moles of solute present in 1 kg of solvent is called:

                            
                            
                        
            
                

                

                Molarity

            
            
                

                

                Normality

            
            
                

                

                Mole fraction

            
            
                

                

                Molality

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    13 / 25
                    
                        
                        
                                Which concentration unit is independent of temperature?

                            
                            
                        
            
                

                

                Molarity

            
            
                

                

                Normality

            
            
                

                

                Formality

            
            
                

                

                Molality

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    14 / 25
                    
                        
                        
                                The value of Henry's constant ((K_H)) is:

                            
                            
                        
            
                

                

                Greater for gases with higher solubility

            
            
                

                

                Constant for all gases

            
            
                

                

                Not related to solubility

            
            
                

                

                Greater for gases with lower solubility

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    15 / 25
                    
                        
                        
                                Relative lowering of vapour pressure is equal to:

                            
                            
                        
            
                

                

                Mole fraction of solvent

            
            
                

                

                Molality

            
            
                

                

                Molarity

            
            
                

                

                Mole fraction of solute

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    16 / 25
                    
                        
                        
                                At high altitudes, the boiling point of water decreases because:

                            
                            
                        
            
                

                

                Temperature is low

            
            
                

                

                Atmospheric pressure is high

            
            
                

                

                None of these

            
            
                

                

                Atmospheric pressure is low

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    17 / 25
                    
                        
                        
                                Semi-permeable membrane allows the passage of:

                            
                            
                        
            
                

                

                Solute particles

            
            
                

                

                Both solute and solvent

            
            
                

                

                Complex ions

            
            
                

                

                Solvent molecules

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    18 / 25
                    
                        
                        
                                Seawater is converted into fresh water by:

                            
                            
                        
            
                

                

                Osmosis

            
            
                

                

                Diffusion

            
            
                

                

                Filtration

            
            
                

                

                Reverse Osmosis

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    19 / 25
                    
                        
                        
                                Mole fraction of a component A in a mixture of A and B is:

                            
                            
                        
            
                

                

                n_A/(n_A+n_B)

            
            
                

                

                n_B/n_A

            
            
                

                

                n_A*n_B

            
            
                

                

                n_B/(n_A+n_B)

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    20 / 25
                    
                        
                        
                                An ideal solution is one which obeys:

                            
                            
                        
            
                

                

                Henry’s Law

            
            
                

                

                Boyle’s Law

            
            
                

                

                Dalton’s Law

            
            
                

                

                Raoult’s Law

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    21 / 25
                    
                        
                        
                                Blood cells collapse when placed in a solution which is:

                            
                            
                        
            
                

                

                Hypotonic

            
            
                

                

                Isotonic

            
            
                

                

                None of these

            
            
                

                

                Hypertonic

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    22 / 25
                    
                        
                        
                                The van't Hoff factor (i) for BaCl2 (assuming 100% dissociation) is:

                            
                            
                        
            
                

                

                1

            
            
                

                

                2

            
            
                

                

                3

            
            
                

                

                4

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    23 / 25
                    
                        
                        
                                The units of the cryoscopic constant K_{f} are:

                            
                            
                        
            
                

                

                mol. Kg^1 K^-1

            
            
                

                

                kg  mol^-1 K-1

            
            
                

                

                K  mol kg^-1

            
            
                

                

                K  kg mol^-1

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    24 / 25
                    
                        
                        
                                The boiling point of a solvent _____ on adding a non-volatile solute.

                            
                            
                        
            
                

                

                Decreases

            
            
                

                

                Remains same

            
            
                

                

                First increases then decreases

            
            
                

                

                Increases

            
                        
                        
                        
                        
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

                    
                    
                    25 / 25
                    
                        
                        
                                Isotonic solutions have the same:

                            
                            
                        
            
                

                

                Molality

            
            
                

                

                Normal concentration

            
            
                

                

                None of these

            
            
                

                

                Molar concentration (Osmotic pressure)

            
                        
                        
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                        
                        
                            
                           
                        
                        
                    
                

            
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टेस्ट पूरा करने के बाद अपना Score जरूर देखें। जिन प्रश्नों के उत्तर गलत हुए हैं, उनके Concepts और Formula को दोबारा पढ़ें। नियमित Practice से इस Chapter पर आपकी पकड़ बेहतर हो सकती है।
Chapter: Solutions
Hindi Name: विलयन
Class: 12th
Subject: Chemistry
Nesar Sir
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Class 12 Chemistry Chapter 2 Online Test 2027

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