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H(2)S(2)O(8) is called...

`H_(2)S_(2)O_(8)` is called

A

Persulphuric acid

B

Pyrosulphurus acid

C

Pyrosulphuric acid

D

Dithionic acid

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The correct Answer is:
A
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One of the methods of preparation of per disulphuric acid, H_(2)S_(2)O_(8) , involve electrolytic oxidation of H_(2)SO_(4) at anode (2H_(2)SO_(4)toH_(2)S_(2)O_(8)+2H^(+)+2e^(-)) with oxygen ad hydrogen as by-products in such an electrolysis, 9.722 L of H_(2) and 2.35L of O_(2) were generated at STP. What is the weighht of H_(2)S_(2)O_(8) formed?

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Peroxy disulphuric acid (H_(2)S_(2)O_(8)) can be prepared by electrolytic oxidation of H_(2)SO_(4) as : 2H_(2)SO_(4) rarr H_(2)S_(2)O_(8)+2H^(+)+2e^(-) Oxygen and hydrogen are by products. In such an electrolysis 9.72 litre of H_(2) and 2.35 litre of O_(2) were generated at NTP. What is the mass of peroxy disulphuric acid formed ?