gas is produced when iron reacts with sulphuric acid.

Hydrogen

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Sulphur

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Oxygen

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Solution

The correct option is A Hydrogen
Iron is more reactive than hydrogen. Thus, it displaces hydrogen ions from sulphuric acid to produce hydrogen gas.
Fe(s) + $H_{2} {S O}_{4}$ (aq) → $F e {S O}_{4}$ (aq) +
$H_{2}$ (g)

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