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प्रश्न
How is bleaching powder prepared? Write a chemical equation of the reaction involved in the preparation of bleaching powder.
Write the preparation of the following compound with a balanced chemical equation:
Bleaching powder
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उत्तर
Bleaching powder is produced by the action of chlorine on dry slaked lime [Ca(OH)2].
\[\ce{\underset{(Slaked lime)}{\underset{Calcium hydroxide}{Ca(OH)2}} + \underset{Chlorine}{Cl2} -> \underset{(Bleaching powder)}{\underset{calcium oxychloride}{CaOCl2}} + \underset{Water}{H2O}}\]
संबंधित प्रश्न
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.
Name one compound of calcium which is used for removing the colour of a coloured cloth.
What is “baking powder”?
State two uses of the following compound:
Chlorine
What is 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?
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.
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
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.
