The reactivity order of halides for dehydrohalogenation is 

1. R-F>R-Cl>R-Br>R-I

2. R-I>R-Br>R-Cl>R-F

3. R-I>R-Cl>R-Br>R-F

4.  R-F>R-I>R-Br>R-Cl

Subtopic:  Hofmann's Elimination & Saytzeff Elimination |
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The increasing order of hydrolysis of the following compounds:

(a) (i)<(iii)<(ii)

(b) (ii)<(iii)<(i)

(c) (ii)<(i)<(iii)

(d) (i)<(ii)<(iii)

Subtopic:  Free Radical /Reaction intermediate |
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What is major product of following reaction ?

Subtopic:  Hofmann's Elimination & Saytzeff Elimination |
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1.        2.  

3.                  4.   

Subtopic:  Free Radical /Reaction intermediate |
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Consider the given reaction below:

Which of these is true regarding the reaction shown above?

(1) the configuration of the chiral carbon remains same.

(2) the configuration of the chiral carbon gets inverted

(3) the  compound formed as a product must be a dextro isomer

(4) the reactant is optically inactive but the product is obtained as a levo isomer.

Subtopic:  SN1 & SN2 Reactions |
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Zn ANH3/EtOHNa B

Product 2 is

Subtopic:  SN1 & SN2 Reactions |
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The ease of dehydrohalogen of alkyl halide with alcoholic KOH is(1) 3°>2°>1°(2) 3°<2°<1°(3) 3°>2°<1°(4) 3°<2°>1°

Subtopic:  SN1 & SN2 Reactions |
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Which of the following is formed by the thermal decomposition of the hydroxide of:

1.  

2.  

3.  

4.  

 

 

 

Subtopic:  SN1 & SN2 Reactions |
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Read the following road map carefully

(1) Both the ethers obtained by the two routes have opposite but equal optical rotation.

(2) One of the ether is obtained as a racemic mixture.

(3) Step II & III both are SN2 reaction and both have inversion.

(4) Step II has inversion but step III has retention.

Subtopic:  SN1 & SN2 Reactions |
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PhOH NaOHMe2SO4 P, P is

(1) Ph–O–SO2OMe

(2) PhOMe

(3) PhOSO2OPh

(4) PhMe

Subtopic:  Reagents |
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