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What is bleaching powder? Give equation …

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What is bleaching powder? Give equation for its reaction with (1) HCl (2) CO2 (3)H2So4

Posted by Kanchan Agrawal 5 years, 2 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 1 month ago

(a) Bleaching powder is Calcium oxychloride (CaOCl2). It is prepared by passing chlorine gas over dry slaked lime.

Reaction: Ca(OH)2+Cl2→CaOCl2+H2O

(b) When bleaching powder reacts with dilute sulphuric acid, it produces chlorine gas.

Reaction: CaOCl2+H2SO4→CaSO4+Cl2(g)+H2O(l)

(i) It is used for disinfecting the drinking water supply.

(ii) It is used in the manufacture of chloroform.

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CBSE > Class 10 > Science