1.

The correct statements among (a) to (d) regarding H2 as a fuel are : (a) It produces less pollutants than petrol (b) A cylinder of compressed dihydrogen weighs ~30 times more than a petrol tank producing the same amount of energy. (c) Dihydrogen is stored in tanks of metal alloys like NaNi5 (d) On combustion, values of energy released per gram of liquid dihydrogen and LPG are 50 and 142 kJ, respectively. (1) (b) and (d) only (2) (b), (c) and (d) only (3) (a) and (c) only (4) (a), (b) and (c) only

Answer»

The correct option is (4) (a), (b) and (c) only.



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