The correct statements among | Chemistry | JEE MAIN 2019

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JEE MAIN 2019

11-01-2019 S1

Question

The correct statements among (a) to (d) regarding $\mathrm{H}_2$ as a fuel are
(a) It produces less pollutants than petrol.
(b) A cylinder of compressed dihydrogen weighs $\sim 30$ times more than a petrol tank producing the same amount of energy.
(c) Dihydrogen is stored in tanks of metal alloys like $\mathrm{NaNi}_5$.
(d) On combustion, values of energy released per gram of liquid dihydrogen and LPG are 50 and 142 kJ , respectively.

Select the correct option:

A

(b) and (d) only

B

(a) and (c) only

C

(b), (c) and (d) only

D

(a), (b) and (c) only

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

The energy released by combustion of one gm dihydrogen is more than L.P.G.

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