Compound (A) `C_(5)H_(8)O_(2)` liberated `CO_(2)` on reaction with sodium bicarbonate. It exists in two forms neither of which is optically active. It yielded compound (B) `C_(5)H_(10)O_(2)` on hydrogenation. Compound (B) can be separated into enantiomorphs. Write structures of (A) and (B).

CH_(3) CO_(2) C_(2) H_(5) on reaction with sodium ethoxide in ethanol gives A , which on heating in the presence of acid gives B compound B is

An organic compound (A) , C_(4)H_(8)Cl_(2) on hydrolysis forms another compound (B) , C_(4)H_(8)O . If (B) does not responds to iodo form test , then identify possible structures of (A) and (B).

A compound 'X' (C_(2)H_(4)O) on oxidation gives 'Y' (C_(2)H_(4)O_(2)) . The compound 'X' undergoes haloform reaction. Write the structure of 'X' and 'Y'.

Compound C_(4)H_(8)O_(2) exists in various strutures as shown: Which statement(s) is/are correct?

An organic compound (A) , C_(4)H_(8)Cl_(2) on hydrolysis forms another compound (B) , C_(4)H_(8)O . If the compound (B) responds positively to iodo form test , then identify (A) and (B).

An optically active compound H(C_(5)H_(6)O) on treatment with H_(2) in the presence of Lindlar's catalyst gave a compound I (C_(5)H_(8)O) . Upon hydrogenation with H_(2) and Pd/C, Compound H gave J (C_(5)H_(12)O) . Both I and J were found to b optically inactive. Select the correct statements.

Compound (A) (C_(4)H_(8)O_(3)) reacts with NaHCO_(3) and evolves CO_(2)(g). (A) reacts with LAH to give a compound (B) which is a chiral. The structure of (A) is: