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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
Give the molecular formula of bleaching powder.
Write the chemical name of bleaching powder and write its properties.
Name the substance obtained by the action of chlorine on solid (dry) slaked lime.
State two uses each of the following compounds:
Chlorine
What is the common name of the compound CaOCl2?
State two important uses 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.
Give a scientific explanation.
Bleaching powder has the odour of chlorine.
Assertion (A): Reaction of Quicklime with water is an exothermic reaction.
Reason (R): Quicklime reacts vigorously with water releasing a large amount of heat.
