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Haloalkanes and Haloarenes

Previous year questions with solutions · 2000 – 2026

36Questions
25Papers covered
3.33%Weightage 2026▲ 50% vs last year
’01
’02
’04
’05
’08
’09
’10
’11
’12
’15
’16
’17
’18
’20
’21
’22
’23
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
2026321.53.33% ▲ 50% vs last year
20251112.22% ▼ 43.9% vs last year
20244223.96% ▲ 1% vs last year
20232123.92% ▲ 32% vs last year
2022321.52.97% ▼ 25.7% vs last year
20212124.00% ▲ 80% vs last year
20201112.22% same as last year
20181112.22% same as last year
20171112.22% ▲ 100% vs last year
2016120.51.11% same as last year
2015120.51.11% ▼ 11.1% vs last year
2012120.51.25% ▼ 66.2% vs last year
2011321.53.70% ▼ 25.9% vs last year
20104225.00% ▲ 27.5% vs last year
20092123.92% ▲ 100% vs last year
20081111.96% ▼ 2% vs last year
20051112.00% ▼ 52% vs last year
20042124.17% ▲ 108.3% vs last year
20021112.00% ▲ 2% vs last year
20011111.96%

⚠ 1 of these questions are out of the current syllabus (marked on the question).

36 questions · newest paper first · page 2 of 2

Ques. 31AIPMT 2008

In an SN2 substitution reaction of the type R-Br + Cl- DMF R-Cl + Br- which one of the following has the highest relative rate?

  1. CH3- CH3 | CH3 |C-CH2Br
  2. CH3CH2Br
  3. CH3CH2CH2Br
  4. CH3- CH3 |CH-CH2Br
Ques. 32AIPMT 2005

Which of the following undergoes nucleophilic substitution exclusively by SN1 mechanism?

  1. Ethyl chloride
  2. Isopropyl chloride
  3. Chlorobenzene
  4. Benzyl chloride
Ques. 33AIPMT 2004

Which of the following is least reactive in a nucleophilic substitution reaction?

  1. (CH3)3C-Cl
  2. CH2=CHCl
  3. CH3CH2Cl
  4. CH2=CHCH2Cl
Ques. 34AIPMT 2004

Chloropicrin is obtained by the reaction of

  1. steam on carbon tetrachloride
  2. nitric acid on chlorobenzene
  3. chlorine on picric acid
  4. nitric acid on chloroform
Out of syllabus
Ques. 35AIPMT 2002

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
Ques. 36AIPMT 2001

An organic compound A (C4H9Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative, then A is

  1. t-butyl chloride
  2. s-butyl chloride
  3. iso-butyl chloride
  4. n-butyl chloride