Two aromatic compounds having formula C_7H_8O | vedclass

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(A) The $FeCl_3$ test is used to detect the presence of a phenolic group ($-OH$ group attached directly to the benzene ring).Compounds containing a ph

Vedclass · Accepted Answer

$o-$cresol and benzyl alcohol

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(A) The $FeCl_3$ test is used to detect the presence of a phenolic group ($-OH$ group attached directly to the benzene ring).Compounds containing a phenolic group react with neutral $FeCl_3$ to form a violet-colored complex.Among the given options, $o-$cresol ($2-$methylphenol) is a phenol and gives a violet color with $FeCl_3$.Benzyl alcohol $(C_6H_5CH_2OH)$ does not contain a phenolic group (the $-OH$ is on the side chain), so it does not give a violet color with $FeCl_3$.Therefore, $o-$cresol and benzyl alcohol can be distinguished using this test.

Two aromatic compounds having formula $C_7H_8O$ which are easily identifiable by $FeCl_3$ solution test (violet colouration) are

Similar Questions

In Kolbe's reaction,instead of phenol,the phenoxide ion is treated with carbon dioxide. Why?

The following reaction is known as:

Identify the product in the following reaction:
Phenol + $CHCl_3 + NaOH \rightarrow \text{Product}$

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:

Describe the reactions of nitration and bromination of phenol.

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