Download Class 9 Chemistry Study App | Periodicity and Properties MCQ e-Book PDF
Class 9 Chemistry MCQs (Grade 9) From Textbook

Class 9 Chemistry MCQs – Certification Test 131

Periodicity and Properties MCQ (Question 131) – Study App & e-Book Download

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MCQ 131: When an electron is added in the valence shell than:

  1. energy is absorbed
  2. energy is released
  3. energy remains same
  4. force of attraction increases

Class 9 Chemistry MCQ App & e-Book – Periodicity and Properties Admission Tests

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