What reagent and/or reaction conditions would you choose to bring about the conversion shown in the image?

Compound $(A)$ with molecular formula $C_6H_{12}O_3$ gives a positive iodoform test and a negative Tollens' test. Upon hydrolysis with a drop of $H_2SO_4$,it gives a product that shows a positive Tollens' test. Compound $(A)$ is:

The reaction involving the reduction of a ketone to an alkane using zinc amalgam $(Zn-Hg)$ and concentrated hydrochloric acid $(HCl)$ is known as:

Which of the following does not give iodoform reaction?

In the following reactions,$P, Q, R$,and $S$ are the major products.
The correct statement$(s)$ about $P, Q, R$,and $S$ is(are):
$(A)$ Both $P$ and $Q$ have asymmetric carbon$(s)$.
$(B)$ Both $Q$ and $R$ have asymmetric carbon$(s)$.
$(C)$ Both $P$ and $R$ have asymmetric carbon$(s)$.
$(D)$ $P$ has asymmetric carbon$(s)$,$S$ does not have any asymmetric carbon.

$C_6H_5-CH=CHCHO \xrightarrow{X} C_6H_5-CH=CHCH_2OH$. In the above sequence,$X$ can be: