Enantiomers

Q.

Two possible stereo-structures of $C{H}_{3}CH\left(OH\right)COOH$ which are optically active, are called:

1. Diastereomers

2. Atropisomers

3. Enantiomers

4. Mesomers

Q. A chiral compound and its mirror image are to each other.

1. enantiomers
2. cis/trans isomers
3. tautomers

Q.

Which of the following is not applicable to enantiomers?

1. They have identical melting and boiling points

2. They have identical chemical properties except towards optically active reagents

3. They can be separated by fractional crystallization

4. They rotate the plane polarized light in opposite directions but to the same extent.

Q. The correct statement(s) for the following addition reactions is/are:

1. O and P are identical molecules
2. (M & O) and (N & P) are two pairs of diastereomers
3. (M & O) and (N & P) are two pairs of enantiomers
4. Bromination proceeds through trans-addition in both given reactions.

Q. Calamine, malachite, magnetite and cryolite, respectively are:

1. $ZnS{O}_4,Cu(OH{)}_2,F{e}_3{O}_4,N{a}_{3}Al{F}_6$
2. $ZnC{O}_3,CuC{O}_3.Cu(OH{)}_2,F{e}_3{O}_4,N{a}_{3}Al{F}_6$
3. $ZnS{O}_4,CuC{O}_3,F{e}_2{O}_3,Al{F}_3$
4. $ZnC{O}_3,CuC{O}_3,F{e}_2{O}_3,N{a}_{3}Al{F}_6$

Q.

Enantiomers can be separated by:

1. Salt formation method

2. Mechanical separation

3. Fractional crystallisation

4. Fractional distillation

Q. A pair of enantiomers will have the same

1. melting point
2. effect on plane polarized light
3. refractive index
4. smell

Q.

Which cannot exhibit enantiomerism?

1. 1-Bromo-2-chlorobutane

2. 2-butanol

3. 1, 2-dichlorobutane

4. Diphenyl methanol

Q. Isomers which can be interconverted through rotation around a single bond are