NBS(A)CH3SNa(B), Product (B) is:

1.

2.  

3. 

4. None of these

Subtopic:  Mechanism of Reactions |
 60%
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What is the major product of the following reaction?

H2C=CH-CH2-OH excessHBr Product

1.  CH3-CH|Br-CH2-Br

2.  H2C=CH-CH2-Br

3.  CH3-CH|Br-CH2-OH

4.  CH3-CH|OH-CH2-OH

Subtopic:  Mechanism of Reactions |
 66%
From NCERT
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SN1 and SN2 products are the same with (excluding stereoisomer):-

1.  
 2.  
3.  

4. 

Subtopic:  Mechanism of Reactions |
 58%
From NCERT
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Consider the nucleophilic attacks given below. Select in each pair that shows the greater SN2 reaction rate.

(A)  

(B) H3C-Br+S-H              or      H3C-Br+CH3SH
     (iii)                                                (iv) 

(C)  

(D)  


     A   B    C     D
1.  II   IV   VI   VIII
2.  II   III   V    VIII
3.  I    III   V    VIII
4.  I    III   V    VII 

Subtopic:  Mechanism of Reactions |
From NCERT
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Addition of KI accelerates the hydrolysis of primary alkyl halides because:

1. KI is soluble in organic solvents

2. the iodide ion is a weak base and a poor leaving group

3. the iodide ion is a strong base

4. the iodide ion is a powerful nucleophile as well as a good leaving group

Subtopic:  Mechanism of Reactions |
 80%
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The product X in the below mentioned reaction is:

1.  2.
3. 4.
Subtopic:  Mechanism of Reactions |
 76%
From NCERT
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Relative rate of reaction of the following amine with methyl iodide is:

(1) A > B > C

(2) A > C > B

(3) B > C > A

(4) B > A > C

Subtopic:  Mechanism of Reactions |
From NCERT
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Major product of the above reaction is:

1. 

2. 

3. 

4. 

Subtopic:  Mechanism of Reactions |
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Anisolerefluxexcess HI (conc.)Product

1. 

2. 

3. 

4. 

 

Subtopic:  Introduction and Physical Properties |
 65%
From NCERT
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Which of the following compounds would react faster with NaCN in an SN2 reaction?

1. 

2. 

3. 

4. 

Subtopic:  Mechanism of Reactions |
From NCERT
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