STANDARD Chemistry Empirical and Molecular Formulas MCQ Question
Two elements 'P' and 'Q' combine to form a compound. Atomic mass of 'P' is 12 and 'Q' is 16. Percentage of 'P' in the compound is 27.3. What will be the empirical formula of the compound?
P₂O₂
PQ
P₂Q
PQ₂
Correct Answer
Detailed Explanation
The percentage of 'P' in the compound is given as 27.3. Using the atomic masses, the moles of 'P' and 'Q' can be calculated. The ratio of moles gives the empirical formula as PQ₂.
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