Chemistry · S and p Block Elements
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The formula of bleaching powder is:
- A
2CaSO4.2H2O
- B
(CaSO4)2 . H2O
- C
Ca(OCl)Cl
- D
MgSO4.7H2O
- E
none of these
The correct formula for bleaching powder is Ca(OCl)Cl, which is known as calcium oxychloride. It is commonly used in water treatment and as a disinfectant. The other options are incorrect as they represent various other compounds: Option A, 2CaSO4.2H2O, is gypsum; Option B, (CaSO4)2 . H2O, is plaster of Paris; Option D, MgSO4.7H2O, is Epsom salt. Option E, 'none of these', is incorrect because the correct answer is provided in option C.
This is the formula for gypsum, a mineral used in construction, not related to bleaching powder.
This represents calcium sulfate hemihydrate, commonly known as plaster of Paris, not used as a bleaching agent.
This is the correct formula for bleaching powder, also known as calcium oxychloride. It is widely used for disinfection and bleaching.
This is the formula for Epsom salt, known for its medicinal and therapeutic uses, not for bleaching.
Since option C is the correct formula for bleaching powder, this option is incorrect.
Tagged under Chemistry · S and p Block Elements · 2012