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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 it.

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asked Jan 16, 2018 in Chemistry by sforrest072 (157,439 points) ● 61 ● 411 ● 949
Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it.
(a) What will be the action of gas on (i) dry litmus paper? (ii) moist litmus paper?
(b) Write a balanced chemical equation for the reaction taking place

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answered Jan 16, 2018 by faiz (82,347 points) ● 6 ● 6 ● 11
selected Jan 25, 2018 by Vikash Kumar
 
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(a) When sulphur is heated in air, sulphur dioxide gas is formed.
(i) Sulphur dioxide has no action on dry litmus paper.
(ii) Sulphur dioxide turns blue litmus paper to red.
(b) S(s) +O2(g) +SO2(g)
Sulphur     Orygen       Sulphur dioxide

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