What are the products formed when benzaldehyde reacts with concentrated sodium hydroxide?

Compound $x$ having molecular formula $C_3H_6O$ is reduced by Red $P/HI$ to give compound $y$ $(C_3H_8)$. Since $x$ reduces Tollen's reagent,what is the possible structure of $x$?

The reaction of chloroform with acetone gives ...................

In the above reaction,product $(B)$ is:

Carbonyl compounds undergo nucleophilic addition because of

The haloform test is given by which of the following substances?