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Which of the following is also referred to as ‘Marshall’s acid’?(a) HO3SOOSO3H(b) HO3SOSO3H(c) HO3SSO3H(d) HO3SSO2HThe question was posed to me in unit test.My question is from P-Block Elements topic in portion P-Block Elements of Chemistry – Class 12

Answer»

The correct option is (a) HO3SOOSO3H

The best EXPLANATION: Marshall’s ACID is the common name for peroxydisulfuric acid. It is prepared by the reaction between chlorosulfuric acid and hydrogen peroxide. Another method includes the electrolysis of concentrated sulfuric acid (60% – 70%) with platinum ELECTRODES at high current DENSITY and voltage.



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