Iron filings Dilute sulphuric acid Gas "X" Salt solution "Y"
1. The gas X' obtained is (oxygen/hydrogen).
2. A new substance (is/is not) formed during the change.
3. The change (can/cannot) be reversed.
4. The salt solution 'Y' obtained is (iron nitrate/iron sulphate).
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Answer:
hydrogen
is formed
cannot
iron sulphate
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