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Can we use concentrated sulphuric acid and pure zinc in the preparation of dihydrogen? |
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Answer» Solution :Conc. `H_(2)SO_(4)` cannot be USED because it acts as an oxidizing AGENT ALSO and gets reduced to `SO_(2)` `Zn+2H_(2)SO_(4)(Conc.)toZnSO_(4)+2H_(2)O+SO_(2)` Pure Zn is not used because it is non-porous and REACTION will be slow. The impurities in Zn help in constitute of electrochemical couple and speed up reaction. |
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