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Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test-tube over the burning sulphur. What will be the action of this gas on: Dry litmus paper? Moist litmus paper? Write a balanced chemical equation for the reaction taking place.

Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test-tube over the burning sulphur.
What will be the action of this gas on:
Dry litmus paper?
Moist litmus paper?
Write a balanced chemical equation for the reaction taking place.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 6228 Points
2 months ago
a) When sulphur is brunt in air then sulphur dioxide gas is formed. (i) Sulphur dioxide gas has no action on dry litmus paper. (ii) Sulphur dioxide gas turns moist blue litmus paper to red. (b) S(s) + O2(g) —> SO2(g) Multiple Choice Questions (MCQs) [1 Mark each]

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