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UPSC Combined Geo-Scientist

Chemist

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

Mains Paper I covers inorganic chemistry.

UPSC Combined Geo-Scientist, Mains · 2024 · Mains Paper I

Q9(b). Missing nuclear reaction partners

Question

Identify the missing part in the following nuclear reactions: ⁷₃Li + ? → ¹⁰₅B + ¹₀n; ¹²₆C + ¹₁H → ? + γ; ¹²₆C + ? → ⁸₄Be + ⁴₂He; ⁴¹₁₉K + ¹₀n → ⁴⁰₁₉K + ?; ²⁷₁₃Al + ²₁d → ? + ¹₀n.

Answer in brief

In order: ⁴₂He; ¹³₇N; γ; 2 ¹₀n; ²⁸₁₄Si.

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Coversnuclear reactionsbalancing nuclear equationsphotodisintegration(n,2n) reaction(d,n) reaction

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