If you are preparing for CBSE Class 12 Board Exam Term 1 which will be an objective type questions paper, then you need to practice multiple choice questions of Class 12 Chemistry Chapterwise. In this article of AKVTutorials, you will get Solutions CBSE Class 12 Chemistry MCQ Questions with Answer Keys.
Solutions MCQ Questions for Class 12 Question No 11:
Which of the following concentration factor is affected by change in temperature
Option A : Molarity
Option B : Molality
Option C : Mole fraction
Option D : Weight fraction
Show/Hide Answer
Option A : Molarity
Solutions MCQ Questions for Class 12 Question No 12:
The molality of 90% H2SO4 solution whose density is given as 1.8gm/mL
Option A : 1.8
Option B : 48.4
Option C : 91.83
Option D : 94.6
Show/Hide Answer
Option C : 91.83
Solutions MCQ Questions for Class 12 Question No 13:
The density of 3M solution of NaCl is 1.25g/mL. Calculate molality of the solution
Option A : 2.79
Option B : 1.79
Option C : 0.79
Option D : 2.98
Show/Hide Answer
Option A : 2.79
Solutions MCQ Questions for Class 12 Question No 14:
Colligative properties of the solution depend upon:
Option A : Nature of the solution
Option B : Nature of the solvent
Option C : Number of solute particles
Option D : Number of moles of solvent
Show/Hide Answer
Option C : Number of solute particles
Solutions MCQ Questions for Class 12 Question No 15:
Vapor pressure of chloroform(CHCl3) and dichloromethane (CH2Cl2) at 25ºC are 200 mm of Hg and 41.5mm of Hg respectively. Vapor pressure of the solution obtained by mixing 25.5g of CH3Cl3 and 40g of CH3Cl2 at the same temperature will be:
[Molecular weight of CHCl3= 119.5 and molecular mass of CH3Cl2=85u]
Option A : 615.0 mm Hg
Option B : 347.9mm Hg
Option C : 285.5mm Hg
Option D : 90.38mm Hg
Show/Hide Answer
Option D : 90.38mm Hg
Solutions MCQ Questions for Class 12 Question No 16:
Aqueous solution of glucose was prepared by dissolving 18g of glucose in 90g of water. The relative lowering of vapor pressure is equal to
Option A : 1.1
Option B : 0.0196
Option C : 20
Option D : 196
Show/Hide Answer
Option B : 0.0196
Solutions MCQ Questions for Class 12 Question No 17:
A solution has a 1:4 mole ratio of pentane to hexane. The vapor pressure of the pure hydrocarbon at 20ºC are 440 mm of Hg for pentane and 120 mm of Hg for hexane. The mole fraction of pentane in the vapor phase would be ?
Option A : 0.549
Option B : 0.200
Option C : 0.786
Option D : 0.478
Show/Hide Answer
Option D : 0.478
Solutions MCQ Questions for Class 12 Question No 18:
The vapor pressure of two liquids A and B are 80 torr and 60 torr. The total vapour pressure of solution obtained by mixing 3 moles of A and 2 moles of B should be:
Option A : 140 torr
Option B : 20 torr
Option C : 68 torr
Option D : 72 torr
Show/Hide Answer
Option D : 72 torr
Solutions MCQ Questions for Class 12 Question No 19:
Which has the maximum vapor pressure
Option A : HI
Option B : HBr
Option C : HCl
Option D : HF
Show/Hide Answer
Option C : HCl
Solutions MCQ Questions for Class 12 Question No 20:
Vapor pressure increases with increase in
Option A : Concentration of solution containing non volatile solute
Option B : Temperature up to boiling point
Option C : Temperature up to triple point
Option D : Altitude of the concerned place of boiling
Show/Hide Answer
Option B : Temperature up to boiling point
