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MCQ on stereochemistry: Page-8

What is the configuration of the below molecule
Configuration of a structure

(A) 1R

(B) 1S

(C) 2R

(D) 2S

For most of the chiral drugs, which enantiomer is more active?

(B) R isomer

(B) S isomer

(C) It can’t be generalised

(D) Always their racemic mixture

A stereoselective reaction produces

(A) Only one stereoisomers

(B) More percent of one stereoisomer

(C) More recemic mixture

(D) A meso product

The reactants in stereospecific reaction are

(A) Stereoisomers

(B) Constitutional isomers

(C) May not be stereoactive

(D) None

Optical rotation of a stereoactive compound depends on
(A) Molecular weight

(A) R

(B) S

(C) P,Q

(D) R,S