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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 · 2021 · Mains Paper I

Q10(b). Displacement law and four radioactive series

Question

What is radioactive displacement law? Illustrate the radioactive displacements by referring to the four radioactive decay series.

Model answer

The free solution for 2021 answers questions 1, 2, 5, 6, 9 and 11, the ones picked in its time plan. Question 10 is answered in full in the Geo-Scientist Chemistry Paper I, 2021 to 2025 book, with every part of every paper.

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Cover of UPSC Combined Geo-Scientist (Main) Chemistry Paper I: Model Answers 2021 to 2025
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UPSC Combined Geo-Scientist (Main) Chemistry Paper I: Model Answers 2021 to 2025

  • All eleven questions of each paper, with the question printed above its answer
  • Titration, gravimetric and nuclear numericals worked with units; structures drawn
  • Topic-wise weightage and a topic-wise index

Coversradioactive displacement lawSoddy-Fajans ruleradioactive decay series4n seriesalpha and beta decay

All parts of Question 10