Question

23 g sodium metal reacts with water
(a) volume of H, liberated at NTP. (6)
liberated, (c) weight of H, liberated
2Na + 2H,0 - 2NaOH + H,
(1) 22.4 L, 1 mol, 29
(2) 11.2 L, 1/2 mol, lg
(3) 44.8 L, 2 mol, 4g
(4) None of the above
please give the answer​

Answer 1

Option 1 is correct as,

1mole of hydrogen gas at S.T.P occupy= 22.4l or dm^3.

As, here single molecule of hydrogen has released so, it is one mole of hydrogen.

The atomic weight of hydrogen is one.

So, it's molecular weight=2(H)

=2*1

=2g.

Thank you!