Which of the following reactions gives a product with a $C=N-N$ linkage and a yellow precipitate?

The reaction of $A$ to give $B$ and $C$ as shown in the reaction scheme is an example of:
$CH_2=CH_2$ $\xrightarrow[2. Zn/H_2O]{1. O_3} A$ $\xrightarrow{Conc. NaOH} B + C$
(Where $B$ is an alcohol and $C$ is a sodium salt of a carboxylic acid)

$A$ and $B$ in the following reaction are:

Schiff's reagent gives pink colour with

$A$ compound of molecular formula $C_8H_8O_2$ reacts with acetophenone to form a single cross-aldol product in the presence of base. The same compound on reaction with conc. $NaOH$ forms benzyl alcohol as one of the products. The structure of the compound 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 $Q$?