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The products of the reaction between dilute sulphuric acid and sodium thiosulphate crystals are?

Chemistry
JAMB 1981

The products of the reaction between dilute sulphuric acid and sodium thiosulphate crystals are?

  • A. Na2SO4 + SO2 + O2 + H2O
  • B. Na2SO3 + SO3 + O2 + H2O
  • C. Na2SO4 + SO2 + S + H2O
  • D. Na2SO4 + SO3 + S + H2O
  • E. Na2SO4 + SO2 + H2O only
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Correct Answer: Option C
Explanation

\(Na_2S_2O_3 + H_2SO_4 → Na_2SO_4 + SO_2 + S↓ + H_2O\). Sodium thiosulfate reacts with sulfuric acid to produce sodium sulfate, sulphur dioxide, sulfur, and water.

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