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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.
Name the substance obtained by the action of chlorine on solid (dry) slaked lime.
Which is the real bleaching agent present in bleaching powder?
What is "baking powder"? How does it make the cake soft and spongy?
State two uses each of the following compounds:
Chlorine
What is the common name of the compound CaOCl2?
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.
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?
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 the chemical and write its uses.
Write the chemical formula.
Bleaching powder
Brine is an ____________.
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.
