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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
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 uses each of the following compounds:
Chlorine
Which of the following is treated with chlorine to obtain bleaching powder?
(a) CaSO4
(b) Ca(OH)2
(c) Mg(OH)2
(d) KOH
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.
Give a scientific explanation.
Bleaching powder has the odour of chlorine.
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.
