A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solut...
Generally only Aldehydes can reduce Fehling solution
Cl3C-CHO will be able to to reduce this solution and on oxidation it will produce carboxylic acid
It is also known as chloral
A compound A has a molecular formula C₂Cl₃OH. It reduces Fehling solut...
Molecular formula of compound A
- The molecular formula of compound A is C₂Cl₃OH.
Reduction and Oxidation reactions of compound A
- Compound A reduces Fehling solution.
- On oxidation, compound A gives a monocarboxylic acid B.
Formation of compound A
- Compound A is obtained by the action of chlorine on ethyl alcohol.
Identification of compound A
- The molecular formula of compound A indicates the presence of chlorine and hydroxyl groups attached to a carbon chain.
- Since compound A is obtained by the action of chlorine on ethyl alcohol, it is likely that one of the hydroxyl groups in ethyl alcohol is replaced by a chlorine atom.
- The presence of three chlorine atoms in the molecular formula of compound A suggests that three hydroxyl groups in ethyl alcohol are replaced by chlorine atoms.
- Therefore, compound A is chloral (trichloroacetaldehyde), which has the molecular formula C₂Cl₃OH.
Explanation of options
- Option A, methyl chloride (CH₃Cl), has only one chlorine atom and cannot be obtained by the action of chlorine on ethyl alcohol.
- Option B, monochloroacetic acid (CH₂ClCOOH), has one chlorine atom and one carboxylic acid group. It cannot be reduced by Fehling solution and cannot give a monocarboxylic acid on oxidation.
- Option C, chloral (C₂Cl₃OH), meets all the criteria for compound A and is therefore the correct answer.
- Option D, chloroform (CHCl₃), has only one hydroxyl group and cannot be obtained by the action of chlorine on ethyl alcohol.
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