1.

Hydrogen peroxide can be prepared by action of dil H_(2)SO_(4) or H_(3)PO_(4) on barium peroxide or by bubbling CO_(2) through a thin paste of barium peroxide. On industrial scale, it may be prepared by hydrolysis of peroxy disulphuric acid obtained by electrolsis of50%""H_(2)SO_(4) or equimolar mixture of sulphuric acid and ammonium sulphate. The strength ofH_(2)O_(2) can be expressed in various methods say normality, molarity, strength and volume strength. Volume strength means the volume of O_(2) produced by decomposition of 1 ml of H_(2)O_(2). H_(2)O_(2) acts as an oxidising as well as a reducing agent both in acidic and basic media. Hydrolysis of one mole of peroxodisuphuric acid produces

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TWO MOLES of sulphuric acid
Two moles of peroxomonosulphuric acid
ONE MOLE of sulphuric acid, one mole of peroxomonosulphuphuric acid
One mole of sulphuric acid one mole of peroxomonosulphuphuric and one mole of hydrogen peroxide.

Answer :C


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