What is the gas evolved when zinc reacts with sulphuric acid?

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1. Metals above hydrogen in the reactivity series displace hydrogen from dilute acids.
2. Zinc reacts with sulphuric acid to form zinc sulphate and hydrogen gas. The balanced equation is: $\mathrm{Zn + H_2SO_4 \rightarrow ZnSO_4 + H_2}$.
3. Therefore the gas evolved is hydrogen.

FINAL_ANSWER: a

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