Question 1 of 167

A compound A of formula C3H6Cl2 on reaction  with alkali can give B of formula C3H6O or C of formula C3H4. B on oxidation gave a compound of the formula C3H6O. C with dilute H2SO4 containing Hg2+ ion gave D of formula C3H6O, which with bromine and NaOH gave the sodium salt of C2H4O2. Then A is :

(a) CH3CH2CHCl2

(b) CH3CCl2CH3

(c) CH2ClCH2CH2Cl

(d) CH3CHClCH2CL