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प्रश्न
What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.
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उत्तर
When bleaching powder is treated with an excess of a dilute acid, all the chlorine present in it is liberated. For example, when bleaching powder is treated with an excess of dilute sulphuric acid, all the chlorine present in it is liberated.
\[\ce{\underset{(Bleaching powder)}{\underset{Calcium oxychloride}{CaOCl2}} + \underset{(Dilute)}{\underset{Sulphuric acid}{H2SO4}} -> \underset{Calcium sulphate}{CaSO4} + \underset{Chlorine}{Cl2} + \underset{Water}{H2O}}\]
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संबंधित प्रश्न
What is the common name of the compound CaOCl2?
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.
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”?
State two uses of the following compound:
Chlorine
What is bleaching powder?
How is bleaching powder prepared? Write a chemical equation of the reaction involved in the preparation of 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?
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.
Give a scientific explanation.
Bleaching powder has the odour of chlorine.
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.
