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Hydrogen and its Compounds7 Topics1 Quiz
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Oxygen and its Compounds7 Topics1 Quiz
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Halogens, Chlorine and its Compounds7 Topics1 Quiz
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Hydrogen Chloride and Hydrochloric Acid5 Topics1 Quiz
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Nitrogen and Its Compounds9 Topics1 Quiz
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Ammonia9 Topics1 Quiz
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Sulphur and its Compounds13 Topics1 Quiz
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Hydrocarbons12 Topics1 Quiz
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Alkanols4 Topics1 Quiz
Topic Content:
- Laboratory Preparation of Chlorine
- Industrial Preparation of Chlorine
Chlorine is the most important member of halogens. It does not occur freely in nature because it is too reactive. Chlorine is found in combined form as chlorides – the abundant being sodium chloride.
Laboratory Preparation of Chlorine:
In the laboratory, Cl2 gas is prepared by heating concentrated hydrochloric acid with a strong oxidizing agent like manganese(IV) oxide (MnO2 ), potassium tetraoxomanganate(VII), KMnO4 or lead(IV) oxide PbO2 .
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1. Using manganese(IV) oxide: When a mixture of concentrated HCl(aq) and MnO2 is
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