Chemical Reactions of Haloalkanes

IMPORTANT

Chemical Reactions of Haloalkanes: Overview

This Topic covers sub-topics such as Wurtz Reaction, Grignard Reagent, Saytzeff's Rule, Ambident Nucleophiles, Chemical Reactions of Haloalkanes, Nucleophilic Substitution Reactions of Alkyl Halides and, Reaction of Haloalkanes with Ammonia

Important Questions on Chemical Reactions of Haloalkanes

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  S N 1  and   S N 2  reactions differ from each other because of

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Identify A, B, C and D in the following process :

(i)  CH3CH2ClNaCNANi/H2reductionB

(ii)  C6H5NH2NaNO2/HClCC6H5NH2/OHD 

EASY
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What is the order of reactivity of following compounds towards   S N 1 substitutions reaction.
(i) Question Image

(ii) Question Image

(iii) Question Image

HARD
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What is the order of reactivity of following compounds towards  SN1 substitution reaction.

Question Image

EASY
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Which one of the following two substances undergoes SN1 reaction faster?

(i) Question Image   or   (ii) Question Image

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(CH3)3CMgCl on reaction with D2O produces –

HARD
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An SN2 reaction at an asymmetric carbon of a compound always gives:

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A solution of (+) -2-chloro-2-phenylethane in toluene racemises slowly in the presence of small amount of   SbC l 5 , due to the formation of –

HARD
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A solution of (+) -2-chloro-1-phenylethane in toluene racemises slowly in the presence of small amount of  SbCl5, due to the formation of:

EASY
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1–chlorobutane on reaction with alcoholic potash gives –

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n–Propyl bromide on treatment with ethanolic potassium hydroxide produces –

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n–propyl bromide on treatment with ethanolic potassium hydroxide produces

HARD
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The major product of the following reaction is

Question Image

EASY
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The product of following reaction is –

C 2 H 5 O +C H 3 C H 2 I

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In the reaction, CH3Br KCN A H+ B  LiAlH4 C

The product C is.

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In the following question a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion: KCN reacts with methyl chloride to give methyl isocyanide.
Reason: CN is an ambident nucleophile.

EASY
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Saytzeff's rule states that _____ product is the major product in dehydrohalogenation of an alkyl halide.

MEDIUM
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Which of the following best describes Saytzeff's rule?

HARD
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Match the alkyl halide reacting with reagent given in Column I with their respective substituted product given in  Column II and choose the correct option from the codes given below: 

Column I

Column II
a KCN 1) RH
b AgCN 2) RCN
c KNO2 3)  RNC
d LiAlH4 4) R-O-N=O

 

MEDIUM
IMPORTANT

Which of the given options shows the correct product of the reaction, MeCl+RNa?