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प्रश्न
How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder.
उत्तर
Preparation:
Bleaching powder is prepared by passing chlorine gas over dry slaked lime.
Ca(OH)2 + Cl2 → CaOCl2 + H2O
(Slaked lime)
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संबंधित प्रश्न
Give the molecular formula of bleaching powder.
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.
Name the substance obtained by the action of chlorine on solid (dry) slaked lime.
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?
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.
Give a scientific explanation.
Bleaching powder has the odour of chlorine.
Write the chemical formula.
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.
