The major product of the following reaction sequence is:
$C_6H_5OH \xrightarrow[(ii) NaOH, (iii) H^+]{(i) CHCl_3, NaOH(aq)} ?$
$C_6H_5OH \xrightarrow[(ii) NaOH, (iii) H^+]{(i) CHCl_3, NaOH(aq)} ?$
- A$2-$Hydroxybenzaldehyde
- B$3-$Hydroxybenzaldehyde
- C$4-$Hydroxybenzaldehyde
- DBenzaldehyde
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Similar Questions
The major product $(B)$ of this reaction is:
Medium
View SolutionAssertion : Phenol is a stronger acid than ethanol.
Reason : Groups with $+M$ effect decrease acidity at $p-$position.
Reason : Groups with $+M$ effect decrease acidity at $p-$position.
MediumAIIMS 2002
View SolutionAssertion $(A)$: $pK_a$ 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:
Match the following $pKa$ values:
Acid $pKa$ $(a)$ Phenol $(i)$ $16$ $(b)$ $p$-Nitrophenol $(ii)$ $0.78$ $(c)$ Ethanol $(iii)$ $10$ $(d)$ Picric acid $(iv)$ $7.1$
| Acid | $pKa$ |
|---|---|
| $(a)$ Phenol | $(i)$ $16$ |
| $(b)$ $p$-Nitrophenol | $(ii)$ $0.78$ |
| $(c)$ Ethanol | $(iii)$ $10$ |
| $(d)$ Picric acid | $(iv)$ $7.1$ |
MediumKCET 2019
View SolutionWhich of the following is most acidic?
Medium
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