$A$ certain element forms a solid oxide which when dissolved in water forms an acidic solution. The element is:

Silicon has a strong tendency to form polymers like silicones. The chain length of silicone polymer can be controlled by adding :-

Red lead is

Which of the following is not correct?

Consider the following route of reactions $R_2SiCl_2 + H_2O \to (A) \xrightarrow{\text{Polymerisation}} (B)$. Compound $(B)$ in the above reaction is:

Which of the following is an example of a neutral oxide?