Question:

An organic compound 'A' with emperical formula $C _6 H _6 O$ gives sooty flame on burning Its reaction with bromine solution in low polarity solvent results in high yield of $B .B$ is

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In reactions with bromine in a low polarity solvent like \(\text{CS}_2\), phenols undergo electrophilic substitution, where the bromine replaces a hydrogen atom on the benzene ring.
Updated On: Mar 21, 2025
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The Correct Option is C

Approach Solution - 1

Aromatic compounds burns with sooty flame

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Approach Solution -2

Aromatic compounds such as phenols burn with a sooty flame due to incomplete combustion. The reaction of phenol with bromine in the presence of a low polarity solvent like carbon disulfide (\(\text{CS}_2\)) results in the substitution of one of the hydrogen atoms with a bromine atom. Thus, the correct structure for B is obtained by brominating the phenol as shown in option (3).

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Concepts Used:

Carbonyl Compounds

The compounds that contain a carbonyl group (the – C=O group) are called carbonyl compounds.

In organic chemistry, the carbonyl group is considered to be the most important functional group. These compounds are the fundamental part of organic chemistry and their primary members are aldehydes, ketones, and carboxylic acids.

Examples of Carbonyl Compounds:

Organic substances include urea and carbamates, to name a few. acyl chlorides, chloroformates, carbonate esters, lactones, lactams, isocyanates, and hydroxamates are examples of phosphorene derivatives.

Carbonyl Group:

Carbon monoxide can also be used as a ligand, either as a ligand or as an organometallic compound (a metal carbonyl, for example, nickel carbonyl).

A carbonyl group is a functional group that consists of a double-bonded carbon atom and an oxygen atom: C=O, according to organic chemistry. Many organic compound classes are found in a variety of larger functional groupings. A carbonyl compound is a substance that has a carbonyl group in it.