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Question 57 of 72

Q.Match the following:
Compound:

(1) Chloro picrin
(2) Methyl Isocyanide
(3) Chloro benzene
(4) Methylene chloride
Uses:
(i) Detection of primary amine
(ii) DDT
(iii) Paint remover
(iv) Soil sterilizer
(a) (1)-(iv), (2)-(iii), (3)-(ii), (4)-(i)
(b) (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i)
(c) (1)-(i), (2)-(ii), (3)-(iv), (4)-(iii)
(d) (1)-(iv), (2)-(i), (3)-(ii), (4)-(iii)
Puducherry TnboardTamil Nadu HSC First Year (DGE) Board 2019MCQ· 1mImportance★★★★★
79% · 57/72 Questions
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Chloropicrin → soil sterilizer; methyl isocyanide → detection of primary amines; chlorobenzene → DDT manufacture; methylene chloride → paint remover.

Matching each compound to its standard use:

  • (1) Chloro picrin (trichloronitromethane, CCl3NO2): used as a fumigant/soil sterilizer and insecticide → (iv).
  • (2) Methyl isocyanide (CH3NC): the carbylamine (isocyanide) reaction — a primary amine + CHCl3 + alcoholic KOH gives a foul-smelling alkyl isocyanide — is the classic qualitative test used to detect primary amines → (i). …

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