Ethanol $(C_2H_5OH)$ and formic acid $(HCO_2H)$ cannot be distinguished by:

Arrange the acidity of the given four compounds in decreasing order:
$(I)$ $CH_3COCH_2COCH_3$
$(II)$ $CH_3COCH_3$
$(III)$ $CH \equiv CH$
$(IV)$ $CH_3CHO$
Select the correct answer from the codes given below:

In the following reactions,$P$,$Q$,$R$,and $S$ are the major products.
The correct statement$(s)$ about $P$,$Q$,$R$,and $S$ is (are)
$(A)$ $P$ and $Q$ are monomers of polymers dacron and glyptal,respectively.
$(B)$ $P$,$Q$,and $R$ are dicarboxylic acids.
$(C)$ Compounds $Q$ and $R$ are the same.
$(D)$ $R$ does not undergo aldol condensation and $S$ does not undergo Cannizzaro reaction.

Acid hydrolysis of $X$ yields two different organic compounds. Which one of the following is $X$?

Which of the following compounds on hydrolysis gives reactant $(A)$?

The products obtained in the given reactions are shown below. The number of possible products for $x$ and $y$ are: