Evaporation

Q.

How do you determine the boiling point?

Q. Boiling occurs only on the surface of liquid.

1. True
2. False

Q.

A, B, C and D are volatile liquids.
The order of volatility is
A > C > B > D
Now, at a particular temperature:

1. Vapour pressure of A >Vapour Pressure of D
2. Vapour pressure of C >Vapour pressure of B
3. Vapour pressure of B <Vapour pressure of D
4. Vapour pressure of A >Vapour pressure of B