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How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 27.66 g of diborane ? (Atomic weight of B = 10.8 u)

1. 6.4 hours
2. 0.8 hours
3. 3.2 hours
4. 1.6 hours Students may find similar question in CP exercise sheet : [ JEE Main, Chapter : Electro Chemistry, Ex # 4, Q. No.19 ]

Correct answer: 3.2 hours

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