MCQ
Select the gas-phase reaction$(s)$ which can proceed spontaneously ?
- A$C{l^ - } + I \to {I^ - } + Cl$
- B$S{i^ + } + Cl \to Si + C{l^ + }$
- CBoth $(A)$ and $(B)$
- ✓$Kr + H{e^ + } \to K{r^ + } + He$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Statement $I$: The boiling point of hydrides of Group $16$ elements follow the order
$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}$.
Statement $II$: On the basis of molecular mass, $\mathrm{H}_2 \mathrm{O}$ is expected to have lower boiling point than the othe members of the group but due to the presence of extensive $\mathrm{H}$-bonding in $\mathrm{H}_2 \mathrm{O}$, it has higher boiling point.
In the light of the above statements, choose the correct answer from the options given below:

