The compound obtained by the reduction of propionaldehyde by amalgamated zinc and concentrated $HCl$ is

The haloform test is given by which of the following substances?

Which of the following compounds can undergo the haloform reaction?

In the following reaction sequence, the amount of $D$ (in $g$) formed from $10$ moles of acetophenone is. . . . . . (Atomic weights in $g \ mol^{-1}: H = 1, C = 12, N = 14, O = 16, Br = 80$. The yield (%) corresponding to the product in each step is given in the parenthesis)

$p$-cresol reacts with chloroform in an alkaline medium to give compound $A$,which adds hydrogen cyanide to form compound $B$. The latter,on acidic hydrolysis,gives a chiral carboxylic acid. The structure of the carboxylic acid is:

The given alkene undergoes ozonolysis: $2\text{-methylbut-2-ene}$ $\xrightarrow[{(2)\ H_2O/Zn}]{{(1)\ O_3}} \mathop X\limits_{(C_2H_4O)} + \mathop Y\limits_{(C_3H_6O)}$
$X \xrightarrow[{(2)\ H_2O}]{{(1)\ LiAlH_4}} P$
$Y \xrightarrow[{(2)\ H_2O}]{{(1)\ LiAlH_4}} Q$
Which of the following statements is incorrect for $X$,$Y$,$P$,and $Q$?