MCQ
$HOCH_2·CH_2OH$ on heating with periodic acid gives
- A$2HCOOH$
- B$CHO-CHO$
- ✓$2\begin{array}{*{20}{c}}
{^H\backslash } \\
{_H/}
\end{array}C = O$ - D$2CO_2$
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Assertion $(A)$ and the other is labeled as Reason $(R)$. Assertion $(A)$: $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{Cl}$ is an example of allyl halide
Reason$(R)$: Allyl halides are the compounds in which the halogen atom is attached to $\mathrm{sp}^2$ hybridised carbon atom.
In the light of the two above statements, choose the $most \ appropriate$ answer from the options given below:
$(I)$ $RCOCl$
$(II)$ $RCOOR$
$(III)$ $RCON{H_2}$
$(IV)$ ${(RCO)_2}O$
What is relationship between $'\,B\,'$ and $'\,E\,'$ ?
Statement $I$ : Bromination of phenol in solvent with low polarity such as $\mathrm{CHCl}_3$ or $\mathrm{CS}_2$ requires Lewis acid catalyst.
Statement $II$ : The lewis acid catalyst polarises the bromine to generate $\mathrm{Br}^{+}$.
In the light of the above statements, choose the correct answer from the options given below :