The IUPAC name of   is:

 

1. 2-Phenylpropan-3-al               2. Formylethylbenzene

3. 2-Phenylpropanal                   4. Ethylformylbenzene

Subtopic:  Nomenclature |
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The IUPAC name of  is:

1. Ethanoic propanoic anhydride
2. Propanoic ethanoic anhydride
3. 1-Ethanoyloxypropanone
4. 3-Ethanoyloxypropan-3-one

Subtopic:  Nomenclature |
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The IUPAC name of  is:

1. Butane-2, 3-dial

2. Butane-1, 3-dione

3. Butane-2, 3-dione

4. 1, 2-dimethylethanedione

Subtopic:  Nomenclature |
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The IUPAC name of  is:

1. 4-Bromo benzenamine

2. 4-Amino-1-bromobenzene

3. 4-Bromo benzenamide

4. 1-Bromo benzencarboxamide

Subtopic:  Nomenclature |
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The IUPAC name of  is:

1. 2, 6-Dimethylhepta-2, 5-dienoic acid

2. 3, 7-Dimethylhepta-2, 5-dienoic acid

3. 1-Hydroxy-2, 6-dimethylhepta-2, 5-dienone

4. none of these

Subtopic:  Nomenclature |
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The most stable carbocation is:

1. 

2. 

3. 

4. 

Subtopic:  Reaction Intermediates ; Preparation & Properties |
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The electromeric effect in organic compounds is a

1. temporary effect

2. permanent effect

3. temporary-permanent effect

4. none of the above

Subtopic:  Electron Displacement Effects |
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The stability of 2,3-dimethyl but-2-ene is more than 2-butene. This can be explained in terms of:

1. Resonance

2. Hyperconjugation

3. Electromeric effect

4. Inductive effect

Subtopic:  Electron Displacement Effects |
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(CH3)4N+ is neither an electrophile nor a nucleophile because it:

1. does not have an electron pair for donation as well as cannot attract an electron pair.
2. neither has an electron pair available for donation nor can accommodate electrons since all shells of N are fully occupied.
3. can act as Lewis acid and base.
4. none of the above.
Subtopic:  Nucleophile & Electrophile |
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Which of the following is an electrophilic reagent?

1. RO-

2. BF3

3. NH3

4. RO····H

Subtopic:  Nucleophile & Electrophile |
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