The hydride of phosphorus,$PH_3$,is ...

On heating copper nitrate strongly,$.......$ is finally obtained.

Assertion $(A)$: Silicones are used for water proofing of fabrics.
Reason $(R)$: The repeating unit in silicones is $R_2SiO$.

$RCl$ $\xrightarrow[Si]{Cu \text{ powder}} R_2SiCl_2$ $\xrightarrow{H_2O} R_2Si(OH)_2$ $\xrightarrow{\text{condensation}} A$
Compound $(A)$ is:

In the following reaction,assign the correct category for the underlined atom based on the product of complete hydrolysis at $R.T.$:
$\underline{C}O_2 + H_2O \longrightarrow H_2CO_3$

The element with atomic number $Z = 114$ has been discovered recently. It will belong to which of the following family/group and electronic configuration?