UPSC Combined Geo-Scientist, Mains · 2020 · Mains Paper II
Q15(c). Photodimerisation of anthracene: [A₂] independent of [A]
Question
Dimerisation of anthracene (A) in benzene happens by absorption of electromagnetic radiation. The concentration of its dimer at equilibrium, [A₂]eq, is independent of the initial monomer concentration [A] in the higher concentration region. Explain with reason.
Model answer
The free solution for 2020 answers questions 1, 2, 3, 4, 5, 7, 8, 11, 12 and 13, the ones picked in its time plan. This part is not answered on the site yet. New answers are announced on Telegram.
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Coversphotodimerisationanthracenephotostationary statequantum yield
All parts of Question 15
- 15(a) Rotational constant versus bond length and reduced mass5 marks
- 15(b) CO₂ bending mode: IR active, Raman inactive5 marks
- 15(c) Photodimerisation of anthracene: [A₂] independent of [A]10 marks