-p-Block elements - I — Chemistry STD 11 Science — Question

The starting materials for the manufacture of silicones are alkyl or aryl substituted silicon chlorides, $\mathrm{R}_{\mathrm{n}} \mathrm{SiCl}_{(4-\mathrm{n})}$, where $\mathrm{R}$ is alkyl or aryl group.

On hydrolysis of this alkyl or aryl substituted silicon chlorides the silicones are formed.

Among given options, option A is the only alkyl substituted silicone chloride and hence it is correct answer.