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Haloalkanes and Haloarenes · Question 34

AIPMT 2004MCQEasy📈 Topic in 0% papers+4−1
1

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

Answer

(4) nitric acid on chloroform

Solution

Chloropicrin is trichloronitromethane, CCl3NO2.

⇒ It is formed when chloroform is heated with concentrated nitric acid (the H of CHCl3 is replaced by -NO2):

CHCl3 + HNO3 CCl3NO2 + H2O

∴ Chloropicrin is obtained by the reaction of nitric acid on chloroform.

Answer: (4)

Out of syllabusAIPMT 2004

Keep practising — Haloalkanes and Haloarenes

2

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
AIPMT 2002
3

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
AIPMT 2001

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