What is the ratio of $s p^3$ carbons to $s p^2$ carbons in the product ' $P$ ' of the given sequence of reactions?

$$ \text { The final product }(C) \text { in the given reaction sequence is } $$

$$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH} \xrightarrow{\mathrm{SOCl}_2}(A) \xrightarrow[\text { anhy } \cdot \mathrm{AlCl}_3]{\mathrm{C}_6 \mathrm{H}_6}(B) \xrightarrow[\text { (ii) } \mathrm{KOH}_4 /\left(\mathrm{CH}_2 \mathrm{OH}\right)_2]{\text { (i) } \mathrm{NH}_2-\mathrm{NH}_2}(C) $$

$$ \text { What are } X \text { and } Y \text { in the following reaction sequence? } $$

$$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{~N}_2^{+} \mathrm{Cl}^{-} \xrightarrow{X} \mathrm{C}_6 \mathrm{H}_5 \mathrm{CN} \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O}]{\text { (i) } \mathrm{CH}_3 \mathrm{MgBr}} Y $$