Assertion $(A)$: $pK_a$ of phenol is $4.19$ and that of benzoic acid is $10$.
Reason $(R)$: Phenoxide ion is stabilised by non-equivalent resonance structures,whereas benzoate ion is stabilised by two equivalent resonance structures.
The correct option among the following is:
Reason $(R)$: Phenoxide ion is stabilised by non-equivalent resonance structures,whereas benzoate ion is stabilised by two equivalent resonance structures.
The correct option among the following is:
- A$A$ and $R$ are true. $R$ is the correct explanation of $A$.
- B$A$ and $R$ are true,but $R$ is not the correct explanation for $A$.
- C$A$ is true,$R$ is false.
- D$A$ is false,but $R$ is true.
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