Question:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion : Glyceraldehyde reacts with \(Br_2/ H_2O\) to form achiral compound. 

Reason : \(-CHO\) and \(-CH_2OH\) both are oxidised.

In the light of the above statements, choose the correct answer from the options given below

Updated On: Apr 3, 2023
  • If both assertion and reason are true and reason is the correct explanation of assertion
  • If both assertion and reason are true but reason is not the correct explanation of assertion
  • If assertion is true but reason is false
  • If both assertion and reason are false
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The Correct Option is D

Solution and Explanation

Answer (d) If both assertion and reason are false

Assertion : Glyceraldehyde reacts with \(Br_2/ H_2O\) to form achiral compound. (Not correct)

Reason : \(-CHO\) and \(-CH_2OH\) both are oxidised. (Not True and also not correct reason)

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Concepts Used:

Aldehydes, Ketones, and Carboxylic Acids

Aldehydes, Ketones, and Carboxylic Acids are carbonyl compounds that contain a carbon-oxygen double bond. These organic compounds are very important in the field of organic chemistry and also have many industrial applications.

Aldehydes:

Aldehydes are organic compounds that have the functional group -CHO.

Preparation of Aldehydes

Acid chlorides are reduced to aldehydes with hydrogen in the presence of palladium catalyst spread on barium sulfate.

Ketones:

Ketones are organic compounds that have the functional group C=O and the structure R-(C=O)-R’.

Preparation of Ketones

Acid chlorides on reaction with dialkyl cadmium produce ketones. Dialkyl cadmium themselves are prepared from Grignard reagents.

Carboxylic Acid:

Carboxylic acids are organic compounds that contain a (C=O)OH group attached to an R group (where R refers to the remaining part of the molecule).

Preparation of Carboxylic Acids

Primary alcohols are readily oxidized to carboxylic acids with common oxidizing agents such as potassium permanganate in neutral acidic or alkaline media or by potassium dichromate and chromium trioxide in acidic media.