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Standard XII

Chemistry

SN2 Reaction Mechanism

Which of the ...

Question

Which of the following haloalkanes is most reactive

2–bromopropane

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1-bromopropane

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2–chloropropane

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1–chloropropane

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Solution

The correct option is A 2–bromopropane
The alkyl halides are highly reactive, the order of reactivity is
Iodide > bromide > chloride > (nature of the halogen atom).
Tertiary > Secondary > Primary.
Thus, 2–bromopropane is the given option

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Similar questions

Q. From each of the following pairs select the compound that will react faster with sodium iodide in acetone
(a) 2-Chloropropane or 2-bromopropane
I II
(b) 1-Bromobutane or 2-bromobutane
I II

How the following conversions can be carried out?

(i) Propene to propan-1-ol

(ii) Ethanol to but-1-yne

(iii) 1-Bromopropane to 2-bromopropane

(iv) Toluene to benzyl alcohol

(v) Benzene to 4-bromonitrobenzene

(vi) Benzyl alcohol to 2-phenylethanoic acid

(vii) Ethanol to propanenitrile

(viii) Aniline to chlorobenzene

(ix) 2-Chlorobutane to 3, 4-dimethylhexane

(x) 2-Methyl-1-propene to 2-chloro-2-methylpropane

(xi) Ethyl chloride to propanoic acid

(xii) But-1-ene to n-butyliodide

(xiii) 2-Chloropropane to 1-propanol

(xiv) Isopropyl alcohol to iodoform

(xv) Chlorobenzene to p-nitrophenol

(xvi) 2-Bromopropane to 1-bromopropane

(xvii) Chloroethane to butane

(xviii) Benzene to diphenyl

(xix) tert-Butyl bromide to isobutyl bromide

(xx) Aniline to phenylisocyanide

Q. How the following conversions can be carried out?
(i) Propene to propan-1-ol (ii) Ethanol to but-1-yne
(iii) 1-Bromopropane to 2-bromopropane (iv) Toluene to benzyl alcohol
(v) Benzene to 4-bromonitrobenzene (vi) Benzyl alcohol to 2-phenylethanoic acid
(vii) Ethanol to propanenitrile (viii) Aniline to chlorobenzene
(ix) 2-Chlorobutane to 3, 4-dimethylhexane (x) 2-Methyl-1-propene to 2-chloro-2-methylpropane
(xi) Ethyl chloride to propanoic acid (xii) But-1-ene to n-butyliodide
(xiii) 2-Chloropropane to 1-propanol (xiv) Isopropyl alcohol to iodoform
(xv) Chlorobenzene to p-nitrophenol (xvi) 2-Bromopropane to 1-bromopropane
(xvii) Chloroethane to butane (xviii) Benzene to diphenyl
(xix) tert-Butyl bromide to isobutyl bromide (xx) Aniline to phenylisocyanide

Q. Consider following compounds.

Number of compounds which are more reactive than

2-Chloropropane

for

S_{N} 1

mechanism are

Q. Assertion :Statement-

I

: chloropropane has higher boiling point than chlorethane.
Reason: Statement-

I I

: haloalkanes are polar molecules.

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Which of the following haloalkanes is most reactive

The correct option is A 2–bromopropaneThe alkyl halides are highly reactive, the order of reactivity is Iodide > bromide > chloride > (nature of the halogen atom). Tertiary > Secondary > Primary. Thus, 2–bromopropane is the given option

The correct option is A 2–bromopropane
The alkyl halides are highly reactive, the order of reactivity is
Iodide > bromide > chloride > (nature of the halogen atom).
Tertiary > Secondary > Primary.
Thus, 2–bromopropane is the given option