Same chapter3 marksDifficulty: Medium
Why must concentrated sulphuric acid always be added to water and never water to the acid?
Study of Compounds: Sulphuric Acid
3 marksDifficulty: Medium
Write equations to show sulphuric acid acting as (i) a dilute acid with zinc and (ii) an oxidising agent with copper.
Original Khojo Papers practice question — not from a past board paper.
Answer
(i) Zn + H2SO4 (dilute) → ZnSO4 + H2. (ii) Cu + 2H2SO4 (concentrated, hot) → CuSO4 + SO2 + 2H2O.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Dilute sulphuric acid behaves as an ordinary acid; only the hot concentrated acid oxidises.
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