Question

What happens when Aluminium is heated with concentrated sulphuric acid

Answer 1

Aluminium reacts with hot,concentrated sulphuric acid to form aluminium sulphate with the evolution of sulphur dioxide gas.Sulphuric acid acts an oxidising agent, and gets itself reduced to SO2. Only with the dilute acid, the metal liberates hydrogen gas.

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Answer 2

Since aluminum is a metal so it forms a salt and released H2 gas.

Al + H2SO4 = Al2(SO4)3 + H2⬆

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