When acetaldehyde is heated with Fehling solution,it gives a red precipitate of:

Isobutyraldehyde on reaction with formaldehyde and $K_{2}CO_{3}$ gives compound '$A$.' Compound '$A$' reacts with $KCN$ and yields compound '$B$,' which on hydrolysis gives a stable compound '$C$.' The compound '$C$' is .... .

In the given reaction: $C_6H_5-COCH_3 \xrightarrow[(ii) H^{+}]{(i) Br_2/KOH} CHBr_3 + [X]$,$[X]$ will be:

Reduction of ketones cannot be carried out with which of the following reagents?

Total number of nucleophiles from the following is $:-$ $NH_3, PhSH, (H_3C)_2S, H_2C=CH_2, \stackrel{\ominus}{O}H, H_3O^{\oplus}, (CH_3)_2CO, CH_3CH=NCH_3$

Identify the product $P$ from the following sequence of reactions?