Here are the practice questions of class 12 Chemistry chapter 01 SOLUTIONS. This page is updated on a regular basis to provide the students as many as questions possible. The provided questions may carry different weight-ages, which will be mentioned next to these (except one mark carrying MCQs, Fill Ups and VSTs). Write the answers according to the weightage.

DAY 01 - SET 01

1. One mole of liquid A and two moles of liquid B make a solution having a total vapour pressure 40 torr. The vapour pressure of pure A and pure B are 45 torr and 30 torr respectively. The above solution

(a) is an ideal solution

(b) shows positive deviation

(c) shows negative deviation

(d) is a maximum boiling azeotrope

2. A solution of sucrose (molar mass = 342 g/mol) has been prepared by dissolving 6.85 g of sucrose in 100 g of water. The freezing point of the solution obtained will be (Kf for water = 1.86 K kg/mol)

(a) +0.372 ℃

(b)  -0.570 ℃

(c)  -0.372 ℃

(d)  +0.520 ℃

3. The phenomenon in which cells are shrinked down if placed in hypertonic solution is called:

(a) Plasmolysis

(b) Haemolysis

(c) Endosmosis

(d)  None

4. What are isotonic solutions? (2 marks)

5. State Henry's law. (2 marks)

6. Briefly explain Van't Hoff factor. (3 marks)