Which of the following compounds is formed when is boiled with sulphur?

CHEMISTRY · Single correct

Problem

Which of the following compounds is formed when Na2SO3\text{Na}_2\text{SO}_3 is boiled with sulphur? (1) Na2SO4\text{Na}_2\text{SO}_4 (2) Na2S2O5\text{Na}_2\text{S}_2\text{O}_5 (3) Na2S2O6\text{Na}_2\text{S}_2\text{O}_6 (4) Na2S2O3\text{Na}_2\text{S}_2\text{O}_3

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