A mixture of gases SO₂, O₂ and 4 g of N₂ and total mass of mixture is 10 g

Question

A mixture of gases SO₂, O₂ and 4 g of N₂ and total mass of mixture is 10 g, what is the sum of mole fraction of SO₂ and O₂?

Options:

A . 0.25

B . 0.5

C . 0.75

D . 1

Answer: Option C
Answer: (c).0.75

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