When zinc granules react with "dilute sulphuric acid",then bubbles of hydrogen gas evolve. But what will happen if zinc granules react with "concentrated sulphuric acid"?

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Solution

Dear student,

Concentrated sulphuric acid (H₂SO₄) is a strong oxidizing agent so it oxidizes the Zinc as follows :
Zn + 2 H₂SO_{4 (conc)} → ZnSO₄ +2 H₂O + SO₂

Instead of hydrogen gas, sulphur dioxide gas is released.

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Similar questions

Write word equations and then balanced equations for the reaction taking

place when −

(a) dilute sulphuric acid reacts with zinc granules.

(b) dilute hydrochloric acid reacts with magnesium ribbon.

(d) dilute hydrochloric acid reacts with iron filings.

What happens when dilute sulphuric acid is added to zinc granules? Select the correct option.

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