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Why NH(3) gas cannot be dried by passing...

Why `NH_(3)` gas cannot be dried by passing over `P_(2)O_(5),CaCl_(2)` and `H_(2)SO_(4)` ?

Text Solution

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`CaCl_(2)+8NH_(3) to CaCl_(2).8NH_(3)`
`P_(2)O_(5)+6NH_(3) +3H_(2)O to 2(NH_(4))_(3)PO_(4)`
`H_(2)SO_(4)+2NH_(3) to (NH_(4))_(2)SO_(4)`
So it is dried by passing over quick lime `(CaO)`
`CaO+H_(2)O to Ca(OH)_(2)`
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