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Write the observation when dilute hydrochloric acid is added to a mixture of
iron filings and sulphur powder
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When dilute HCI is added to part A, FeS will react with dil HCI to form H2S gas which has smell of rotten eggs and will turn lead acetate paper black. As part 'B' is not heated, so B is a mixture of iron filings and sulphur powder.
Explanation:
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