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

What is the major product formed when salicylaldehyde is reacted with $2$ equivalents of bromine in glacial acetic acid at $0^{\circ} C$?

You have two $C_6H_{10}O$ ketones,$I$ and $II$. Both are optically active,but $I$ is racemized by treatment with acid and $II$ is not. Wolff-Kishner reduction of both ketones gives the same achiral hydrocarbon,formula $C_6H_{12}$. What reasonable structures may be assigned to $I$ and $II$ respectively?

In the given reaction,$[X]$ will be:

The conversion shown in the image can be achieved by:

Which product is obtained by the reduction of propionaldehyde with amalgamated zinc and concentrated $HCl$?