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ICSE Class 10 Chemistry Question 49 of 62

Study of Compounds — Sulphuric Acid — Question 51

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Question

Question 2(2017)

State one relevant observation for – Action of conc. sulphuric acid on hydrated copper sulphate.

Answer

The blue coloured hydrous copper sulphate changes to white anhydrous copper sulphate as the water of crystallization is removed.

CuSO4.5H2O→Conc. H2SO4CuSO4 [White Anhydrous]+5H2O\text{CuSO}_4\text{.5H}_2\text{O} \xrightarrow{\text{Conc. H}_2\text{SO}_4} \text{CuSO}_4 \text{ [White Anhydrous]} + 5\text{H}_2\text{O}