The compound formed when malonic acid heated with urea, is                  

1. cinnamic acid

2. butyric acid

3. barbituric acid

4. crotonic acid

Subtopic:  Isomers & Reaction Mechanism |
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The dihedral angle between two C-H bonds in the staggered conformation of ethane  is            

1. 60° 

2. 180°

3. 0° 

4. 120°

Subtopic:  Conformational Isomers |
 60%
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Number of monochlorinated products (excluding stereo-isomers) obtained from the given reaction are :

                           

1. 4 2. 5
3. 6 4. 7
Subtopic:  Structural Isomers |
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 Which of the following compounds will exhibit cis-trans (geometrical) isomerism?

1. but-2-ene                             

2. Butanol

3. but-2-yne                             

4. buten-2-ol   

Subtopic:  Stereo Isomers |
 79%
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An alkane can form Structural isomers if the number of carbon atoms is-

1. 1                                 

2. 2

3. 3                                   

4. 4

Subtopic:  Structural Isomers |
 60%
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Isomerism exhibited by acetic acid and methyl formate is:
1. Functional
2. Chain
3. Geometrical
4. Central 

Subtopic:  Structural Isomers |
 82%
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Which one of the following pairs represents stereoisomerism?                                     

1. Chain isomerism and rotational isomerism

2. Structural isomerism and geometrical isomerism

3. Linkage isomerism and geometrical isomerism

4. Optical isomerism and geometrical isomerism

Subtopic:  Stereo Isomers |
 86%
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A racemic mixture is formed by mixing two:

1. Isomeric compounds             

2. Chiral compounds

3. Meso compounds                       

4. Enantiomers

Subtopic:  Stereo Isomers |
 64%
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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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The prefix used for -SH group as per the IUPAC system is-

1. Mercapto

2. Thiol

3. Sulfide

4. None of the above

Subtopic:  Nomenclature |
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