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The correct statement(s) regarding $H_{2}$ as a fuel are

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It produces less pollutants than petrol

A cylinder of compressed $H_{2}$ weight $\approx 30$ times more than petrol tank producing the same amount of energy.

Dihydrogen is stored in tanks of metal alloys like $N a N i_{5}$

On combustion, values of energy released per gram of liquid $H_{2}$ and petrol are 50 and 142 KJ respectively

answer is A, B, C.

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Detailed Solution

Energy released by $H_{2}$ = 142 KJ
Energy released by petrol = 50 KJ

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