Question

1. The gas ‘X’ obtained is (oxygen/hydrogen).
2. A new substance (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 1

Explanation:

1 - hydrogen

2- is

3- cannot

4- iron sulphate.

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