A racemic mixture is formed by mixing two:

1. Isomeric compounds             

2. Chiral compounds

3. Meso compounds                       

4. Enantiomers

Subtopic:  Stereo Isomers |
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A compound of molecular formula C7H16 shows optical isomerism, the compound will be

1. 2,3-dimethyl pentane 

2. 2,2-dimethyl butane 

3. 2-methyl hexane 

4. None of the above

Subtopic:  Stereo Isomers |
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Which of the following has an asymmetric carbon atom?

1. 

2. 

3. 

4. 

Subtopic:  Stereo Isomers |
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Stereoisomers (geometrical or optical) that are neither superimposable nor a mirror images to each other are called:

1. Enantiomers             

2. Monomers

3. Tautomers               

4. Diastereomers

Subtopic:  Stereo Isomers |
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Diastereomers can be separated by:

1. Recrystallization            

2. simple distillation

3. electrophoresis                     

4. all of these

Subtopic:  Stereo Isomers |
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Which of the following pairs of carbon skeletons is an example of isomerism?

1. 

2. 

3. 

4. 

Subtopic:  Structural Isomers |
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The number of isomeric structures for C2H7N would be:

1. 4 

2. 3

3. 2 

4. 1

Subtopic:  Structural Isomers |
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Number of isomers possible for C4H8 are-

1. 4     

2. 3       

3. 2     

4. 6

Subtopic:  Structural Isomers |
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The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation of ethane is:

1. 120° 

2. 180°

3. 90° 

4. 60°

Subtopic:  Conformational Isomers |
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Which of the following acid does not exhibit optical isomerism?

1. Maleic acid                           
2. α-amino acid

3. Lactic acid                             
4. Tartaric acid                             

Subtopic:  Stereo Isomers |
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