1.

4.5 g of aluminium (at mass 27 amu) is deposited at cathode from Al^(3+) solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H^(+) ions in solution by the same quantity of electric charge will be

Answer»

22.4L
44.8L
5.6L
11.2L

Solution :Eq. of Al=eq. of `H_(2)`
`(4.5)/((27)/(3))="eq. of "H_(2),(4.5)/(9)=eq." of "H_(2)`
`2H^(+)+2e^(-)toH_(2)`
eq. of `H_(2)="number of MOLES"xx"n FACTOR ".5=n_(H_(2))xx2`
`V_(H_(2))=(0.5)/(2)xx22.4,V_(H_(2))=5.6` l.


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