Question

A graph of vapour pressure and temperature for three different liquids X, Y and Z is shown below :

The following inferences are made : 

(A) X has higher intermolecular interactions compared to Y. 

(B) X has lower intermolecular interactions compared to Y. 

(C) Z has lower intermolecular interactions compared to Y.

The correct inference(s) is/are:

(1) A

(2) (C)

(3) (B)

(4) (A) and (C)

Answer 1

Answer is (3)

Order of B.P. is Z > Y > X

Order of intermolecular interaction : Z > Y > X.

Answer 2

Answer is (3)

Order of intermolecular intreactions

Z > Y > X

∴ Correct statement B only.