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JAMB Chemistry 1984 Question 22

Question 22

Sulphur and its Compounds

Sulphur

  1. A.forms two alkaline oxides
  2. B.is spontaneously flammable
  3. C.burns with a blue flame
  4. D.conducts electricity in the molten state
  5. E.is usually stored in the form of sticks in water.
Show the answer and explanation

Answer: C (burns with a blue flame)

Explanation

Sulphur burns in air with a blue flame to form sulphur (IV) oxide. Its oxides are acidic, it does not conduct, and it is white phosphorus, not sulphur, that is kept under water.