1.

How long 100 amp current should be pass for electrolysis of water which liberate oxygen which is sufficient for complete combustion of 27.66 gm diborane ? (atomic weight of B=10.8 u)

Answer»

6.4 hours
0.8 hours
3.2 hours
1.6 hours

Solution :Diborane : `B_(2)H_(6)`
Its MOLECULAR mass=`(10.8)2+6(1)`
`=21.6+6=27.6" g "MOL^(-1)`


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