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ICSE Class 10 Chemistry 2015 Paper

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The following questions are pertaining to the laboratory preparation of hydrogen chloride gas :
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Question : 78 of 85
Marks: +1, -0
Name the drying agent used and justify your choice.
Solution:  
Drying agent is conc. sulphuric acid because it is an acidic drying agent and other drying agent react with HCl\mathrm{HCl} .
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