MCQ
Which compound is known as oil of winter green
- APhenyl benzoate
- BPhenyl salicylate
- CPhenyl acetate
- ✓Methyl salicylate
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$(A)$ The $pH$ of $1 \times 10^{-8}\,M\,HCl$ solution is $8$.
$(B)$ The conjugate base $H _2 PO _4^{-}$is $HPO _4{ }^{2-}$.
$(C)$ $K _{ w }$ increases with increase in temperature.
$(D)$ When a solution of weak monoprotic acid is titrated against a strong base at half neutralisation point, $pH =\frac{1}{2} pK _{ a }$
Choose the correct answer from the option given below.

$COC{l_2}\left( g \right) \rightleftharpoons CO\left( g \right) + C{l_2}$
is an endothermic process. Which of the following will increase the degree of dissociation of $COCl_2$