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Class 9 Chemistry Cerification Guide: Certification Test 82

Ions and Free Radicals MCQs App & e-Book: MCQ 82

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MCQ: 82

An oxide ion has -2 charge because

  1. oxygen looses two electrons
  2. oxygen gains two electrons
  3. oxygen becomes neutral
  4. oxygen gains 3 electrons
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Ions and Free Radicals Cerification Guide: Class 9 Chemistry App & eBook MCQs

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