How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 27.66g of diboraneA. 0.8 hoursB. 3.2 hoursC. 1.6 hoursD. 6.4 hous

How long (approximate) should water be electrolysed by passing through

1.	How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 27.66g of diboraneA. 0.8 hoursB. 3.2 hoursC. 1.6 hoursD. 6.4 hous
Answer» Correct Answer - B `B_(2)H_(6)+3O_(2)toB_(2)O_(3)+3H_(2)O` 1 mol 3 mol 3 mol `O_(2)` is required for burning 1 mol `B_(2)H_(6)` `H_(2)O overset("Electrolysis")toH_(2)+(1)/(2)O_(2)" (V.F. of "O_(2)=4)` `("Equivalent of "O_(2))/("V.F. of "O_(2))=" mol of "O_(2)=3` `[((100A)xxtsec)/(96500)]xx(1)/(4)=3` `thereforet=(3xx96500)/(100xx3600)hr.=3.22hrs`.

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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 27.66g of diboraneA. 0.8 hoursB. 3.2 hoursC. 1.6 hoursD. 6.4 hous

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