MCQ
The correct statement regarding $SO_2$ molecule is
- Atwo $p \pi - d \pi$ bond
- Bmolecule bas $2$ lone pair, $2 \sigma$ bonds and $2 \pi$ bonds
- Ctwo $p \pi - p \pi$ bonds
- ✓one $p \pi - p \pi$ and one $p \pi - d \pi$ bond
$\mathrm{SO}_{2}=6+6(2)=18 \mathrm{e}-16 \mathrm{e}=2 \mathrm{e} \rightarrow 1$ lone pair
$\rightarrow \mathrm{G} . \mathrm{S}=[\mathrm{Ne}] 3 \mathrm{s}^{2} 3 \mathrm{p}^{4}$
2 Unpaired electron $1^{\text {st }}$ E.S. $=[\mathrm{Ne}] 3 \mathrm{s}^{2} 3 \mathrm{p}^{3} 3 \mathrm{d}^{1}$
4 unpaired electron $\mathrm{O} \rightarrow 1 \mathrm{s}^{2} 2 \mathrm{s}^{2} 2 \mathrm{p}^{4}$
$\rightarrow$ Geometry of $\mathrm{SO}_{2}$ is BENT/ANGULAR
$\rightarrow$ one $\mathrm{p} \pi-\mathrm{p} \pi$ and one $\mathrm{p} \pi-\mathrm{d} \pi$ Bond
$\rightarrow 2 \pi$ Bonds
$\rightarrow 1$ lone pair on the central atom.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ A secondary alcohol on oxidation gives a ketone
$(B)$ Ethanol reacts with conc. ${H_2}S{O_4}$ at ${180\,^o}C$ to yield ethylene
$(C)$ Methanol reacts with iodine and sodium hydroxide to give a yellow precipitate of iodoform
$(D)$ Hydrogen gas is liberated when sodium is added to alcohol. Select the correct statements from the above set:
$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - C{H_3}}
\end{array}\xrightarrow{{{C_6}{H_5}COOOH}}\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,} \\
{||\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C - O - C{H_3}}
\end{array}$
The above reaction is known as :
$\begin{array}{*{20}{c}}
{{H_3}COOC - CH - COOC{H_3}} \\
{|\,\,} \\
{\,\,\,\,\,\,C{H_2}OH}
\end{array}$