12. Nikita took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test-tube over it. . i) What will be the action of gas an (a) dry litmus paper? (b) Moist litmus paper? (ii) Write a balanced chemical equation for the reaction taking place.
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Answered by
11
S2 + 2 O2 = 2 SO2 is the balanced chemical equation
sulfur dioxide is non metallic oxide.
non metallic oxides are acidic in nature.
so it turns moist blue litmus paper to red.
acids show their acidic property in presence of water. so sulphur dioxide on reacting with dry litmus paper no change.
sulfur dioxide is non metallic oxide.
non metallic oxides are acidic in nature.
so it turns moist blue litmus paper to red.
acids show their acidic property in presence of water. so sulphur dioxide on reacting with dry litmus paper no change.
Answered by
18
Answer:
a) When sulphur powder is burnt in the air sulphur-di-oxide is formed.
(i) Sulphur-di-oxide does not have any effect on dry litmus paper.
(ii) Sulphur-di-oxide turn the moist litmus paper from blue to red as contact of SO2 with water turns to sulfurous acid.
(b) S(s) + O2(g) → SO2(g)
SO2(g) + H2O →H2SO3
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