ICSE Class 7 Chemistry Question 14 of 20

Air & Atmosphere — Question 17

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Question

Question 17

Give word equations for the reactions of –

(a) Non-metals —

  1. Sulphur
  2. Carbon
  3. Phosphorus

(b) Metals —

  1. Sodium
  2. Calcium
  3. Magnesium

with oxygen.

Answer

(a) Non-Metals

  1. Sulphur + Oxygen ⟶ Sulphur dioxide
  2. Carbon + Oxygen ⟶ Carbon dioxide
  3. Phosphorus + Oxygen ⟶ Phosphorus pentoxide

(b) Metals

  1. Sodium + Oxygen ⟶ Sodium oxide
  2. Calcium + Oxygen ⟶ Calcium oxide
  3. Magnesium + Oxygen ⟶ Magnesium oxide