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O Level Chemistry MCQs – Certification Test 191

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MCQ: 191

The greatest proportion by mass of nitrogen is in

  1. Hydrazine (N2H4),
  2. ammonium nitrate (NH4NO3)
  3. ammonium sulphate (NH4)2SO4
  4. urea (NH2CONH2)

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Relative Molecular Mass MCQ App (iOS & Android)

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O Level Chemistry MCQ App (Android & iOS)

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