Question

2 g mixture of H2 and He gases have mole fraction of H2 as
0.5. Hence, mole fraction of He is
(a) 0.5
(b) 1.5
(C) 1.0
(d) 0.25​

Answer 1

Answer:

ans: (C) 1.0

Explanation:

The sum of mole fraction of all the reactants in a solution is always equal to 1.

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