Which among the following reagents can be used for the test of carbonyl group in laboratory?

1. NH2OH

2. NH2NH2

3. NaSO3H

4. 2,4-DNPH

Subtopic:  Reagents |
 61%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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In the reaction sequence,

[X] will be:

1. 2. CH3COOH
3. C6H5-NH2 4. CH3-CO-NH-C6H5
Subtopic:  Addition Reaction of C=N, C=0 |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Consider the following statements for carbonyl compounds:

(i) They give nucleophilic addition reaction.

(ii) Aldehyde is more reactive than ketone for nucleophilic addition reaction.

(iii) β-hydrogen of carbonyl compound is more acidic than α-hydrogen.

(iv) They give addition reaction followed by elimination reaction with NH2-NH-C6H4-CH3.

Of these statements:

(1) (i) and (ii) are correct

(2) (i), (ii) and (iv) are correct

(3) (i), (ii) and (iii) are correct

(4) (i), (ii), (iii) and (iv) are correct

Subtopic:  Addition Reaction of C=N, C=0 |
 53%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Consider the following statements for a carbonyl compound:

(i) It gives addition reaction

(ii) It gives condensation reaction

(iii) It gives elimination reaction

(iv) It gives oxidation reaction

Of these statements:

(1) (i), (ii), (iii) and (iv) are correct

(2) (i) and (ii) are correct

(3) (i), (ii) and (iii) are correct

(4) (i), (ii) and (iv) are correct

Subtopic:  Addition Reaction of C=N, C=0 |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which compound will give E1cb reaction?

(1) CF3-CHCl2

(2) C6H5-CH2-CH2-F

(3)           NO2
           l
CH3-CH-CHC6H5
                  l
                 OCOCH3

(4) All of these

Subtopic:  SN1 & SN2 Reactions |
 70%
From NCERT
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Reaction intermediate of E1 reaction is:

(1) Carbocation

(2) carbanion

(3) Carbene

(4) free radical

 

Subtopic:  Reaction Intermediates |
 75%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Reaction intermediate of E1cb reaction is:

1. Carbocation

2. Carbanion

3. benzyne

4. free radical

Subtopic:  Addition Reaction of C=N, C=0 | SN1 & SN2 Reactions |
 58%
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NEET 2023 - Target Batch - Aryan Raj Singh
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In the given reaction:

CH3-CH2-CH|CH3-CH2-Bralc.KOH/X

[X] will be:

(1) CH3-CH2-C=CH2
                        I
                       CH3

(2) CH3-CH=C-CH3
                        l
                       CH3

(3) CH2=CH-CH-CH3
                       l
                      CH3

(4) CH3-CH=CH-CH2-CH3

Subtopic:  Hofmann's Elimination & Saytzeff Elimination |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following is correctly matched?

1. E2 reaction
2. E2 reaction
3. CH3CH2CH2OH E1 reaction
4. E1cb reaction

Subtopic:  SN1 & SN2 Reactions | Reactions in Ether & Alcohol |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which one of the following pairs is correctly matched?

(1)  E1cb reaction, Hofmann elimination

(2) Hofmann rule, most substituted alkene

(3) Saytzeff rule, least substituted alkene

(4) E1 reaction, Hofmann elimination

Subtopic:  Hofmann's Elimination & Saytzeff Elimination |
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NEET 2023 - Target Batch - Aryan Raj Singh
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