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प्रश्न
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?
उत्तर
Ca(OH)2 combines with Cl2 to give bleaching powder (CaOCl2 ).
The chemical reaction involved is as follows.
2Ca(OH)2 + CaCl2 → CaOCl2 + 2H2O
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संबंधित प्रश्न
What is the common name of the compound CaOCl2?
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 the common name of the compound CaOCl2?
What is bleaching powder?
How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder.
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.
Write the chemical formula.
Bleaching powder
CaOCl2 will liberate Cl2 gas in the presence of
(i) CO2
(ii) HCl
(iii) CO
(iv) NO
