Hydrogen peroxide can be preapared by the action of dil. `H_(2)SO_(4)` or `H_(3)PO_(4)` on barium peroxide or by bubbling peroxide . On an industrial scale, it can be prepared by hydrolysis of peroxodisulphuric acid obtained by electrolysis of 50% `H_(2)SO_(4)` or an equimolar mixture of `H_(2)SO_(4)` and ammonium sulphate . The strength of `H_(2)O_(2)` solution can be expressed in a number of ways namely normality , molarity , percentage strength and volume strength . Volume strength refers to the volume of `O_(2)` produced at N.T.P. by decomposition of 1 mL of `H_(2)O_(2)` solution. `H_(2)O_(2)` acts as an oxidising as well as reducing agent both in acidic and basic media. The volume of 10 volume `H_(2)O_(2)` solution that decolourises 200 mL of 2N `KMnO_(4)` solution in acidic medium is :A. 112 mLB. 336 mLC. 200 mLD. 224 mL

Hydrogen peroxide can be preapared by the action of dil. `H_(2)SO_(4)`

1.	Hydrogen peroxide can be preapared by the action of dil. `H_(2)SO_(4)` or `H_(3)PO_(4)` on barium peroxide or by bubbling peroxide . On an industrial scale, it can be prepared by hydrolysis of peroxodisulphuric acid obtained by electrolysis of 50% `H_(2)SO_(4)` or an equimolar mixture of `H_(2)SO_(4)` and ammonium sulphate . The strength of `H_(2)O_(2)` solution can be expressed in a number of ways namely normality , molarity , percentage strength and volume strength . Volume strength refers to the volume of `O_(2)` produced at N.T.P. by decomposition of 1 mL of `H_(2)O_(2)` solution. `H_(2)O_(2)` acts as an oxidising as well as reducing agent both in acidic and basic media. The volume of 10 volume `H_(2)O_(2)` solution that decolourises 200 mL of 2N `KMnO_(4)` solution in acidic medium is :A. 112 mLB. 336 mLC. 200 mLD. 224 mL
Answer» Correct Answer - d

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