Assertion (A) : The boiling point of ethyl bromide is higher than that of ethyl chloride.
Reason (R ) : The molecular mass of ethyl bromide is higher than that of ethyl chloride.
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is true
D. A is false but R is true
