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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper III covers analytical and organic chemistry.

UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper III

Q7(b). Substituted aniline basicity

Question

Order the para-substituted anilines: (i) nitro, (ii) methoxy, (iii) cyano and (iv) methyl, by decreasing basicity.

Answer in brief

(ii) > (iv) > (iii) > (i).

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CoversSubstituted aniline basicityElectronic effects

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