Among the following statements about the...

Among the following statements about the molecules X and Y , the one (s) which is (are) correct is (are)

X and Y are diastereomers

X and Y are enantiomers

X and Y both are aldohexoses

X is a D- sugar Y is an L-sugar

Verified by Experts

The correct Answer is:

B,C,D

X and Y are actually enantiomers and not diastereomers. Although both X and Y are aldohexoses but X is a D-sugar and Y is a L-sugar.

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Which among the following statements about ethers are correct ?

Peroxide is obtained in presence of air

Ethers are weakly acidic

Ethers from oxonium salt

Ethers from stable complexes with Lewis acids.

Both N of pyrimidine are same basic strength

In imidazole protonation take places on N-3

In purine only one lone pair of N is delocalised.

Pyrimidine, imidazole and purine all are aromatic.

I is a meso compound

I and III are identical

II and IV are a pair of enantimoers

II and III are diastereomers