A diabasic acid containing C,H and O was found to contain C=26.7% and H=2.2%. The vapour density of its dimethyl ester was found to bc 73. The molecular formula of the acid is

A diabasic acid containing C,H and O was found to contain C=26.7% and

1.	A diabasic acid containing C,H and O was found to contain C=26.7% and H=2.2%. The vapour density of its dimethyl ester was found to bc 73. The molecular formula of the acid is
Answer» `CH_(2) O_(2)` `C_(2) H_(2) O_(4)` `C_(3) H_(3) O_(4)` `C_(2) H_(4) O_(4)` Answer :B