For the following reactions: a. CH 3 CH 2 CH 2 Br + KOH → CH 3 CH = CH 2 + KBr + H 2 O b. c. Which of the following statements is correct?

a is elimination, b is substitution and c is addition reaction.

a and b are elimination reactions and c is addition reaction.

a is elimination, b and c are substitution reactions.

a is substitution, b and c are addition reactions.

In S N 2 reactions, the correct order of reactivity for the following compounds : CH 3 Cl, CH 3 CH 2 Cl, (CH 3 ) 2 CHCl and (CH 3 ) 3 CCl is :

CH 3 Cl > CH 3 CH 2 Cl > (CH 3 ) 2 CHCl > (CH 3 ) 3 CCl

CH 3 Cl > (CH 3 ) 2 CHCl > CH 3 CH 2 Cl > (CH 3 ) 3 CCl

CH 3 CH 2 Cl > CH 3 Cl > (CH 3 ) 2 CHCl > (CH 3 ) 3 CCl

(CH 3 ) 2 CHCl > CH 3 CH 2 Cl > CH 3 Cl > (CH 3 ) 3 CCl

In the reaction X and Y are:

X = 1 - Butyne ; Y = 3 - Hexyne

X = 2 - Butyne ; Y = 3 - Hexyne

X = 2 - Butyne ; Y = 2 - Hexyne

X = 1 - Butyne ; Y = 2 - Hexyne

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An unknown alkyl halide reacts with alcoholic KOH to produce a hydrocarbon $(C_{4} H_{8})$ as the major product. One mole of propanaldehyde and one mole of formaldehyde is obtained by the Ozonolysis of the hydrocarbon. Suggest which organic compound among the following has the correct structure of the above alkyl halide(A)?

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Important Questions on Haloalkanes and Haloarenes

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

For the following reactions:
a.

{CH}_{3} {CH}_{2} {CH}_{2} Br + KOH \to {CH}_{3} CH = {CH}_{2} + KBr + H_{2} O

Which of the following statements is correct?

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The increasing order of reactivity of the following compounds towards reaction with alkyl halides directly is:

$(i)$ Question Image

$(i i)$

$(i i i)$

$(i v)$

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The major product obtained in the following reaction is,

Question Image

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

Neopentyl bromide, undergoes dehydrohalogenation to give alkenes even though it has no

β - H

. This is due to

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The major product of the following reaction is:
Question Image

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

Which of the following, upon treatment with tert-

BuONa

followed by addition of bromine water, fails to decolourize the colour of bromine?

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

Consider the reaction

{CH}_{3} {CH}_{2} {CH}_{2} Br + NaCN \to {CH}_{3} {CH}_{2} {CH}_{2} CN + NaBr

This reaction will be the fastest in

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

In a nucleophilic substitution reaction :

R - Br + {Cl}^{-} \overset{DMF}{⟶} R - Cl + {Br}^{-}

, which one of the following undergoes complete inversion of configuration ?

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The major product of the following reaction is:

Question Image

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How do you distinguish chlorobenzene from benzyl chloride?

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The major product of the following reaction is:
Question Image

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

Compound (A),

C_{8} H_{9} Cl

, gives a white precipitate when warmed with alcoholic

{AgNO}_{3}

_. Oxidation of (A) gives an acid (B),

C_{8} H_{6} O_{4}

. (B) easily forms anhydride on heating. Identify the compound (A).

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The major product of the following reaction is:

Question Image

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

The increasing order of the reactivity of the following halides for the

S_{N} 1

reaction is

Question Image

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

Allyl phenyl ether can be prepared by heating :

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2

- chloro -

2

- methylpentane on reaction with sodium methoxide in methanol yields:

(i) Question Image

(ii)

(iii)

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The major product of the following reaction is:
Question Image

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Which of the following compounds shall not produce propene by reaction with

HBr

followed by elimination or direct only elimination reaction?

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Chemistry>Organic Chemistry>Haloalkanes and Haloarenes>Chemical Reactions of Haloalkanes

In S_N2 reactions, the correct order of reactivity for the following compounds :
CH₃Cl, CH₃CH₂Cl, (CH₃)₂CHCl and (CH₃)₃CCl is :

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In the reaction

Question Image

X and Y are:

Important Questions on Haloalkanes and Haloarenes

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