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प्रश्न
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?
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उत्तर
- Two substances that combine to form bleaching powder are Ca(OH)2 and Cl2.
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Four substances which are utilised in the production of washing soda are NaCl, NH3, H2O and CO2.
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The compound that represents plaster of Paris is 2CaSO4.H2O.
- The component which is a part of baking powder is NaHCO3.
- The compound that is used as an antacid is NaHCO3.
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संबंधित प्रश्न
What is the common name of the compound CaOCl2?
Which compound of calcium is used for disinfecting drinking water supply?
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.
What is “baking powder”?
State two uses of the following compound:
Chlorine
What is the common name of the compound CaOCl2?
What is bleaching powder?
What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.
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.
