$P_4 + NaOH + H_2O \to x + y$; find the sum of total $P-H$ bonds in $x$ and $y$.

Assertion $(A): [SiF_6]^{2-}$ is formed but $[SiCl_6]^{2-}$ is not.
Reason $(R):$ Electronegativity $(EN)$ of $F$ is higher than $EN$ of $Cl$.

Silicon chloroform is prepared by

The dioxides and monoxides of elements $X$ and $Y$ are amphoteric in nature. $X$ and $Y$ are respectively.

What would be the major product of the following reaction: $SiCl_4 \xrightarrow{\text{Excess of } H_2O}$?

Carbon can form $p\pi-p\pi$ bond with which kind of elements?