Short answerEasy2 marks
The Empirical formula of an organic compound is CHCl₂ If its relative molecular mass is 168, what is its molecular formula? [At. Wt. C = 12, H = 1, Cl = 35.5]
Topic: Mole concept, gas volumes and stoichiometry
Previous-year question practice database
Answer
Exam answer
C₂H₂Cl₄.
Explanation
Empirical formula mass CHCl₂ = 84; 168/84=2, so molecular formula = (CHCl₂)₂.
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