heating of sulphur powder in hard glass tube . name the kind of change with reason
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it is a chemical change. Sulphur produces sulphur gas when burnt in air, this acidic product is new and changes the composition of sulphur. Hence, it is a chemical change.
Explanation:
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Answer:
When sulphur is heated in air it produce sulphur dioxide SO2 .
(a)(i) SO2 gas is neutral in nature and thus there will be no change in colour of dry litmus paper.
(ii) SO2 reacts with water to produce H 2SO3 sulphurous acid that being acid turns blue moist litmus red.
(b) S(s)+O 2 (g)→SO 2 (g)
SO 2 (g)+H2 O(aq)→H 2 SO3 (aq)
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