Chiral Centres and Chirality

Q. The compound Bromochlorofluoromethane is:

1. Nonsuperimposable on its mirror image
2. Chiral
3. Optically active
4. The central Carbon atom is a chiral center

Q. A strictly planar molecule is optically ___

Q.

On monochlorination of 2-methylbutane, the number of chiral compounds formed are:

1. 2

2. 4

3. 6

4. 8

Q.

An organic compound contains two dissimilar asymmetric carbon atoms. The number of stereoisomers is:

1. 4
2. 3
3. 1
4. 2

Q.

Chiral molecules are those which are

1. Unstable molecules

2. Superimposable on their mirror image

3. Not superimposable on their mirror image

4. Capable of showing geometrical isomerism

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Q.

Which of the following compounds is not chiral?

1. 1-chloro-2-methyl pentane

2. 3-chloro-2-methyl pentane

3. 2-chloropentane

4. 1-chloropentane

Q.

Which is true about following?

1. Only I and II are chiral compounds

2. Only III is a chiral compound

3. Only II and IV are chiral compounds

4. All four are chiral compounds

Q.

2-methylpenta-2, 3-diene is achiral because it has:

1. A plane of symmetry

2. A center of symmetry

3. A C₂ axis of symmetry

4. Both a plane and a center of symmetry

Q.

How many chiral carbons are present in 2, 3, 4-trichloropentane?

1. 4

2. 2

3. 3

4. 1

Q.

Which of the following will exhibit chirality?

1. Neopentane

2. Isopentane

3. 3-methylhexane

4. 2-methylhexane