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प्रश्न
Give a scientific explanation.
Bleaching powder has the odour of chlorine.
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उत्तर
Chlorine is the main ingredient in bleaching powder. When exposed to air, bleaching powder reacts with carbon dioxide in the air to produce calcium carbonate and chlorine. Thus, it smells of chlorine.
CaOCl2 + CO2 `->` CaCO3 + Cl2
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संबंधित प्रश्न
Write the chemical name of bleaching powder and write its properties.
Which compound of calcium is used for disinfecting drinking water supply?
Name one compound of calcium which is used for removing the colour of a coloured cloth.
Which is the real bleaching agent present in bleaching powder?
What is “baking powder”?
State two uses of the following compound:
Chlorine
What is the common name of the compound CaOCl2?
What is bleaching powder?
How is bleaching powder prepared? Write a chemical equation of the reaction involved in the preparation of bleaching powder.
What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.
State two important uses of bleaching powder.
Which of the following is treated with chlorine to obtain bleaching powder?
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
- Which two substances combine to form bleaching powder?
- Which four substances are utilised in the production of washing soda?
- Which compound represents plaster of Paris?
- Which compound is a part of baking powder?
- Which compound is used as an antacid?
When chlorine and sodium hydroxide being produced during the electrolysis of brine are allowed to mix, a new chemical is formed. Name this chemical and write its uses.
Write the chemical formula.
Bleaching powder
CaOCl2 will liberate Cl2 gas in the presence of
(i) CO2
(ii) HCl
(iii) CO
(iv) NO
Chlorine gas reacts with ____________ to form bleaching powder.
