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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 · 2016 · Mains Paper III

Q5(c). Photometric titration curves

Question

Sketch curves for S+T→ P: (i) ε_S=ε_P=0, ε_T>0; (ii) ε_T>ε_P>0, ε_S=0.

Answer in brief

(i) Flat before equivalence, rising afterwards. (ii) Rising before equivalence and more steeply afterwards.

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As written for the answer booklet: the diagram carries the working, the lines stay short. Read here only; it is not offered as a download.

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CoversPhotometric titration curvesAbsorptiometry

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