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Class 9 Chemistry MCQs (Grade 9) From Textbook

Class 9 Chemistry MCQs – Certification Test 40

Metals Quiz (Question 40) – App & e-Book Download

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MCQ 40: As we move across the period from left to right, the reactivity of metals with oxygen:

  1. decreases
  2. increases
  3. remains same
  4. zero
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