Quick picks on solutions

Exercise and reference answers

Questions

1. Question

   Heat of mixing of an ideal solution is:

   Choices

   1. Zero
   2. Large
   3. Small

   Correct choice

   Zero

2. Question

   Vapour pressure above prediction means:

   Choices

   1. Ideal
   2. Positive deviation
   3. No deviation

   Correct choice

   Positive deviation

3. Question

   Chloroform and acetone show:

   Choices

   1. Ideal behaviour
   2. Positive deviation
   3. Negative deviation

   Correct choice

   Negative deviation

4. Question

   A large positive deviation gives an azeotrope that is:

   Choices

   1. Minimum boiling
   2. Maximum boiling
   3. Non-boiling

   Correct choice

   Minimum boiling

5. Question

   Ethanol and water stop separating at about:

   Choices

   1. 68 per cent
   2. 95 per cent
   3. 32 per cent

   Correct choice

   95 per cent

Instructions

Tap the correct answer before the round moves on.

Explanation