Indian Forest Service (Mains)
Chemistry optional
- 2 papers
- 200 marks each
- 3 h per paper
Paper II covers organic chemistry and spectroscopy.
All years

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Paper II, organic chemistry and spectroscopy
Solution, 2022
Indian Forest Service (Mains), Chemistry optional. 34 pages. Questions 1, 3, 5, 7 and 8 are answered.
Every question of 2022, one page each48 parts in 8 questions, with the question as text and the key points of its answer
Question 1 40 marks
- 1(a)Pyridine versus imidazole5 marks
- 1(b)Cyanide addition to a hindered enone5 marks
- 1(c)Tracing the nitrile carbon5 marks
- 1(d)Dichlorocarbene trapping5 marks
- 1(e)Substituent effects on aryl negative charge5 marks
- 1(f)Why DMSO accelerates many SN2 reactions5 marks
- 1(g)Rearrangement during silver-assisted solvolysis5 marks
- 1(h)Organolithium and Baeyer–Villiger sequence5 marks
Question 2 40 marks
Question 3 40 marks
Question 4 40 marks
Question 5 40 marks
- 5(a)Hydrophobic effect in biomolecules5 marks
- 5(b)Stopping radical styrene polymerization5 marks
- 5(c)Complementary DNA and RNA sequence5 marks
- 5(d)CO bond length from rotational spacing5 marks
- 5(e)Isotope shift of C–H stretching5 marks
- 5(f)Relative carbonyl stretching frequencies5 marks
- 5(g)Epoxide opening by dimethylamine5 marks
- 5(h)Labelled allylic bromination5 marks
Question 6 40 marks
Question 7 40 marks





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Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.
Model answer pages open with the VKC plan.