The IUPAC name of CH3-CH|CH2-CH3-CHO  is

1. Butan-2-aldehyde

2. 2- methylbutanal

3. 3- Methylisobutyraldehyde

4. 3- methylbutanal

Subtopic:  Nomenclature |
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An optically active compound is

1. 1-bromobutane

2. β-bromobutyric acid

3. 2-Bromo-2-methyl propane

4. 1-Bromo-2-methyl propane

Subtopic:  Stereo Isomers |
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Which of the following compounds exhibit stereoisomerism?

1. 2-methylbut-1-ene

2. 3-methylbut-1-ene

3. 3-methylbutanoic acid

4. 2-methylbutanoic acid

Subtopic:  Stereo Isomers |
 64%
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The molecule, among the following, that has the smallest heat of hydrogenation per mole is:

1. Cis-2-Butene

2. Trans-2-Butene

3. Propene

4. 1-Butene

Subtopic:  Electron Displacement Effects |
 59%
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Which of the following compounds will exhibit geometrical isomerism?

1. 1-phenyl-2-butene

2. 3-phenyl-1-butene

3. 2-phenyl-1-butene

4. 1, 1-dipheny]-1 -propene

Subtopic:  Stereo Isomers |
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The compounds that show geometrical isomerism among the following are:

a. 2-Butene

b. Propene

c. 1-Phenylpropene

d. 2-Methylbut-2-ene

1. a, b

2. c, d

3. a, b, c

4. a, c

Subtopic:  Stereo Isomers |
 71%
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How many optically active stereoisomers are possible for butane-2,3-diol?

1. 1

2. 2

3. 3

4. 4

Subtopic:  Stereo Isomers |
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Arrange the following groups in order of decreasing - I (inductive) effect :

NO2, CCH33, CH3, OCH3, Br

1.  NO2>Br>OCH3>CCH33>CH3

2.  NO2>Br>OCH3>CH3>CCH33

3.  NO2>OCH3>Br>CCH33>CH3

4.  NO2>OCH3>CCH33>Br>CH3

Subtopic:  Electron Displacement Effects |
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Choose the correct statement about the compounds A, B and C

A.  

B. 

C.

 

1.  A and B are identical

2.  A and B are diastereomers

3.  A and C are enantiomers

4.  A and B enantiomers  

Subtopic:  Stereo Isomers |
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The number of possible enantiomeric pairs than can be produced during monochlorination of 2-methylbutane is 

1.  2

2.  3

3.  4

4.  1

Subtopic:  Stereo Isomers |
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