Stereochemistry - GATE Chemistry MCQ

Enantiotopic, Diastereotopic and homotopic

homotopic, Enantiotopic and Diastereotopic

Enantiotopic, homotopic and Diastereotopic

Diastereotopic, enantiotopic and homotopic

1S, 2R and 1R, 2S

1R, 2S and 1S, 2R

1R, 2R and 1S, 2S

1S, 2R and 1S, 2S

Regioisomers

Identical 

Enantiomers

Diastereomers

Conformational Identical

Configurational enantiomers

Configurational Identical

Conformational enantiomers

Cis-1,2-dichlorocyclohexane and trans-1,2-dichlorocyclohexane rotate plane-polarized light in opposite directions, and together in equal proportions form a racemic mixture

The diaxial and diequatorial forms of trans-1,3-dichlorohexane can be separated by their differing physical properties 
 

The conformational isomers of trans-1,2-dichlorocyclohexane are enantiomers, which are not interconvertible, but resolvable

Only cis-1,4-dichlorocyclohexane is achiral due to a plane of symmetry, and cis-1,4-dichlorocyclohexane is diastereomeric to trans-1,4-dichlorocyclohexane 

A/B are homomer, C/D are enantiomers

D/E are diastereomers, A/C are homomer

A/C are enantiomers and A/E are homomer

B/E are diastereomers and C/D are homomer

Methylcyclohexane

Bicyclo [2.2.1] heptane

Cyclohexane

Cis-decalin

1S, 6S

1S, 6R

1R, 6R

1R, 6S

This compound is optically active because the compound contains a center, plane, or axis of chirality

This compound is not optically active since there are no stereogenic centers

This compound is optically active because it has stereogenic centers that create cis-trans isomers

This compound is not optically active because of its symmetry

Neopentane

Isopentane 

3–Methylpentane

3–Methylhexane

Identical

Geometrical isomers

Enantiomers 

Diastereomers