SN1 reaction on optically active substrates mainly gives:

1. Retention in configuration

2. Inversion in configuration

3. Racemic product

4. No product is obtained

Subtopic:  SN1 & SN2 Reactions |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

"The negative part of the addendum adds on the carbon atom joined to the least number of hydrogen atoms." This statement is called as:

(1) Markownikoff's rule

(2) Peroxide effect

(3) Baeyer's strain theory

(4) Thiele's theory

Subtopic:  Addition Reaction of C=C |
 79%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Heterolysis of propane gives:

(1) Methyl and ethyl free radicals

(2) Methylium cation and Ethyl anion

(3) Methyl anion and Ethylium cation

(4) Methylium and Ethylium cations

Subtopic:  Reaction Intermediates |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Amongst the following which of the above are true for SN2 reaction?

(i) The rate of reaction is independent of the concentration of the nucleophile

(ii) The nucleophile attacks the carbon atom on the side of the molecule opposite to the group being displaced.

(iii) The reaction proceeds with simultaneous bond formation and bond rupture.

1. (i), (ii)

2. (i), (iii)

3. (i), (ii), (iii)

4. (ii), (iii)

Subtopic:  SN1 & SN2 Reactions |
 62%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Carbanions initiate:

(1) addition reactions

(2) substitution reaction

(3) both (1) and (2)

(4) none of these

Subtopic:  SN1 & SN2 Reactions |
 63%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Dehydrogenation of ethanol to give ethanal is:(1) additional reaction  
(2) αα elimination reaction   
(3) αβ elimination reaction   
(4) αγ elimination reaction

Subtopic:  Hofmann's Elimination & Saytzeff Elimination |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Ease of abstraction of hydrogen is greater when attached to:

(1) 1° carbon

(2) 2° carbon

(3) 3°carbon

(4) neo carbon

Subtopic:  Addition Reaction of C=C |
 65%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Which step is the chain termination step in the following mechanism?

(i) Cl2hνCl+Cl
(ii) Cl+ CH4CH3+ HCl
(iii)CH3+Cl2CH3Cl+Cl
(iv)Cl+CH3CH3Cl

1. (i)

2. (ii)

3. (iii)

4. (iv)

Subtopic:  Reaction Intermediates |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Which step is chain propagation step in the following mechanism?

(i) Cl2hνCl+Cl
(ii) Cl+ CH4CH3+ HCl
(iii)Cl+ClCl2
(iv)CH3+ HClCH3Cl

1. (i)

2. (ii)

3. (iii)

4.  (iv)

Subtopic:  Addition Reaction of C=N, C=0 |
 68%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Carbanion can undergo:

1. rearrangement

2. combination with cation

3. addition to a carbonyl group

4. all of the above are correct

Subtopic:  Addition Reaction of C=C |
 70%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints