Chemistry · 2019
JEE Main · 11 January 2019, Shift 1 · Q44
The correct statements among (a) to (d) regarding H_2 as a fuel are: (a) It produces less pollutants than petrol. (b) A cylinder of compressed…
The correct statements among (a) to (d) regarding $\displaystyle \mathrm{H}_2$ as a fuel are :
(a)
It produces less pollutants than petrol.
(b)
A cylinder of compressed dihydrogen weighs ~$\displaystyle 30$ times more than a petrol tank producing the same amount of energy.
(c)
Dihydrogen is stored in tanks of metal alloys like $\displaystyle \mathrm{NaNi}_5$.
(d)
On combustion, values of energy released per gram of liquid dihydrogen and LPG are $\displaystyle 50$ and $\displaystyle 142$ kJ, respectively.
Official answer
(4)
(a) , (b) and (c) only
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.