Chemistry
A compound with Empirical formula XY2, has vapour density equal to its empirical formula weight, its molecular formula is:
- XY2
- X3Y6
- X2Y4
- X6H12
Stoichiometry
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Answer
X2Y4
Reason — Vapour density = Empirical formula weight,
∴ Molecular weight = 2 × Vapour density = 2 × (Empirical formula weight)
Therefore,
Molecular formula = 2 × (Empirical formula)
So, the correct molecular formula should be X2Y4
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