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Write chemical reactions to show that co...

Write chemical reactions to show that conc. `H_2SO_4` can be an oxidising agent.

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`Cu + 2H_2SO_4( conc. ) to CuSO_4 + SO_2 + 2H_2O`
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Write one chemical reaction to show that conc. H_(2)SO_(4) can act as an oxidising agent.

The reactions in which conc. H_(2)SO_(4) is used as an oxidising agent are I. 2HI+H_(2)SO_(4)rarrI_(2)+SO_(2)+2H_(2)O II. NaCl+2H_(2)SO_(4)rarrNaHSO_(4)+HCl III. CaF_(2) | H_(2)SO_(4)rarrCaSO_(4)+2HF IV. Cu+2H_(2)SO_(4)rarrCuSO_(4)+SO_(2)+2H_(2)O Choose the correct option.

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