Which of the following compounds will not react with phenylhydrazine?

Identify the product $Y$ in the following reaction: $CH_3-CH=CH-CH_2-CHO + H_2 \xrightarrow{Ni} Y$

In the given reaction $CH_3-CH_2-C(=O)-CH_2-COOC_2H_5$ $\xrightarrow{[X]} (A)$ $\xrightarrow{(i) LiAlH_4, (ii) H_2O/H^{+}} CH_3-CH_2-C(=O)-CH_2-CH_2OH + C_2H_5OH$,$[X]$ will be:

Which of the following compounds does not give the iodoform test?

In which of the following reactions is a carbon$-$carbon bond $NOT$ formed during the formation of the product?

Cannizzaro reaction between formaldehyde molecules involves the formation of