In the reaction $CH_3Br + KCN_{(alc)} \to X \xrightarrow[Na + C_2H_5OH]{reduction} Y$,identify $Y$.

Which of the following statements is incorrect?

In the given reaction sequence,$Z$ is

In the following reaction,the product $(A)$ is a yellow dye. Identify $(A)$.

Identify the final product formed on ammonolysis of benzyl chloride followed by the reaction with two moles of $CH_3 I$.

For the following diazonium ions,the order of reactivity towards diazo-coupling with phenol in the presence of dilute $NaOH$ is:
$(I)$ $p-Me_2N-C_6H_4-N_2^+$
$(II)$ $p-O_2N-C_6H_4-N_2^+$
$(III)$ $p-CH_3O-C_6H_4-N_2^+$
$(IV)$ $p-CH_3-C_6H_4-N_2^+$