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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
What is the common name of the compound CaOCl2?
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?
Which of the following is treated with chlorine to obtain bleaching powder?
A white powdery substance having strong smell of chlorine is used for disinfecting drinking water supply at waterworks. Identify the substance. Give its chemical name and write the chemical reaction for its preparation.
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
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:
Chlorine gas reacts with ____________ to form bleaching powder.
Assertion (A): Reaction of Quicklime with water is an exothermic reaction.
Reason (R): Quicklime reacts vigorously with water releasing a large amount of heat.
