Waec Model Questions Vol1 2021 Chemistry Question 27
Practice objective / multiple choice question 27 from the 2021 Waec Model Questions Vol1 Chemistry examination.
A 8.0 g mixture contains two alcohols: a diol with formula C₃H₈O₂ and a mono‑alcohol with formula C₃H₈O. When the mixture is oxidised with excess Na₂Cr₂O₇ in acidic medium, the diol yields 2 mol CO₂ per mol oxidised, while the mono‑alcohol yields 1 mol CO₂ per mol oxidised. The total CO₂ collected is 0.20 mol. Determine the mass (in grams, to two decimal places) of the diol present in the original mixture.
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About This Question
This is Waec Model Questions Vol1 2021 Chemistry Question 27. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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