Phosphorus on reaction with sulphuryl chloride gives a compound $X$,which on complete hydrolysis gives $Y$. $X$ and $Y$ are respectively

An orange solid $(X)$ on heating,gives a colourless gas $(Y)$ and a green residue $(Z).$ Gas $(Y)$ on treatment with $Mg,$ produces a white solid substance. Identify the white solid substance.

$P_4O_{10}$ is not used to dry $NH_3$ gas because

When $AgNO_3$ is heated strongly,the products formed are

Which of the following statements is incorrect for nitrogen?

The total number of paramagnetic gaseous products formed in all the following reactions $[A + B + C ]$:
$(A)\ NH_4 NO_3 \xrightarrow{\Delta} \text{Products}$
$(B)\ 3 NaNO_2 + 3 H_2 SO_4 \longrightarrow \text{Products}$
$(C)\ Pb(NO_3)_2 \xrightarrow{673 \ K} \text{Products}$