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Question
Name one compound of calcium which is used for removing the colour of a coloured cloth.
Solution
Bleaching powder, or calcium oxychloride (CaOCl2), is used for removing the colour of a coloured cloth.
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RELATED QUESTIONS
Give the molecular formula of bleaching powder.
What is the common name of the compound CaOCl2?
Write the chemical name of bleaching powder and write its properties.
State two uses each of the following compounds:
Chlorine
Consider the following substance:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
Which two substance combine to form bleaching powder?
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Brine is an ____________.
CaOCl2 will liberate Cl2 gas in the presence of
(i) CO2
(ii) HCl
(iii) CO
(iv) NO
The reaction between MnO2 with HCl is depicted in the following diagram. It was observed that gas with bleaching abilities was released.
The chemical reaction between MnO2 and HCl is an example of:
Assertion (A): Reaction of Quicklime with water is an exothermic reaction.
Reason (R): Quicklime reacts vigorously with water releasing a large amount of heat.
