What is liberated when copper are heated with concentrated H2SO4?

Correct option is B

The correct answer is (b) SO₂

When copper (Cu) is heated with concentrated sulfuric acid (H₂SO₄), the copper is oxidized, and sulfuric acid is reduced. The reaction produces copper sulfate (CuSO₄), water (H₂O), and sulfur dioxide gas (SO₂):

Cu + 2H2SO4CuSO4 + 2H2O + SO2

Additional Information:

Copper, being a transition metal, participates in a variety of chemical reactions. Here are some significant ones:

• Cu(NO3)2 CuO + NO2 + O2

• CuSO4 CuO + SO3 + O2

• Cu + 2H2SO4 CuSO4 + SO2 + 2H2O

• 2Cu + O2 2CuO