The most stable carbanion among the following is

 

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 89%
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The configuration of given tartaric acid is

1. 2R, 3R         2. 2R, 3S

3. 2S, 3S         4. 2S, 3R

Subtopic:  Stereo Isomers |
 67%
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Identify the structure of x,

(1)

(2)

(3)

(4)

Subtopic:  Nucleophile & Electrophile |
 53%
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In the given sequence reaction which of the following is the correct structure of compounds A.

(1)
(2)
(3)
(4)
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Choose the correct statement

(1) I effect transfers e from one carbon atom to another

(2) I effect operates in both σ\p bond

(3) I effect creates not charge in molecule

(4) I effect creates partial charges and it is distance dependent

Subtopic:  Electron Displacement Effects |
 87%
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The IUPAC name of   is:

 

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

3. 2-Phenylpropanal                   4. Ethylformylbenzene

Subtopic:  Nomenclature |
 83%
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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 |
 79%
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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 |
 89%
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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 |
 78%
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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 |
 83%
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