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Question

List-1List-2P.CH3CONH2 and PCl51.Acid strengtheningQ.NO2 group2.Optically activeR.Lactic acid3.Hydrogen is liberatedS.CH3COOH and Na4.Acetonitrile


A

P 1 Q 2 R 3 S 4

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B

P 4 Q 1 R 2 S 3

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C

P 4 Q 1 R 3 S 2

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D

P 3 Q 1 R 2 S 4

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Solution

The correct option is B

P 4 Q 1 R 2 S 3


The first one is simple: an amide gets dehydrated to a nitrile (same number of carbon atoms)

Amide dehydration to Nitrile PCl5

We know that a nitro group - NO2 is strongly electron withdrawing in nature. A carboxylic acid becomes more acidic when it has a nitro group attached to the α-carbon.

Lactic acid is chiral, consisting of two optical isomers. One of the two optical isomers of the alpha hydroxy acid is shown here:

S-Lactic acid

Sodium metal is super reactive and it will liberate hydrogen with acetic acid.


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