Question

Assertion (A): Noble gases have very high boiling point. 

Reason (R): Noble gases have strong dispersion forces hence they liquify at low temperature, hence they have high boiling point.

(1) (A) and (R) are true and (R) explains (A) 

(2) (A) and (R) are true and (R) does not explain (A) 

(3) (A) and (R) are false 

(4) (A) is true but (R) is false

Answer 1

The correct option is (3) (A) and (R) are false.

Noble gases have very low boiling point due to weak van der Waals forces of attraction. Noble gases do not have interatomic forces other than weak dispersion forces. Therefore, both (A) and (R) are false.