Chemistry - Complete P-block Question with Solution | TestHub

The reaction is:

$P_4+10S{O}_{2}C{l}_2\to 4PC{l}_5+10S{O}_2$.

Here, $X=S{O}_2$ (planar, V-shaped, polar) and $Y=PC{l}_5$ (non-planar, trigonal bipyramidal, non-polar in gas phase).

A. Incorrect. $S{O}_2$ is polar, $PC{l}_5$ is non-polar in the gaseous state.

B. Incorrect. $S{O}_2$ is polar.

C. Correct. S in $S{O}_2$ is sp² hybridized (uses 3d orbitals for $\pi$ bonding). P in $PC{l}_5$ is sp³d hybridized (uses 3d orbitals).

D. Incorrect. Hydrolysis of $S{O}_2$ gives H₂SO₃ (dibasic). Hydrolysis of $PC{l}_5$ gives H₃PO₄ (tribasic).