Gce Model Questions Vol1 2025 Chemistry Question 19
Practice objective / multiple choice question 19 from the 2025 Gce Model Questions Vol1 Chemistry examination.
Twenty‑five point zero grams of 2‑butanol (\(\text{C}_4\text{H}_{10}\text{O}\)) are oxidised with excess potassium dichromate in acidic medium to give butan‑2‑one. The balanced redox equation is \(3\,\text{C}_4\text{H}_{10}\text{O} + \text{K}_2\text{Cr}_2\text{O}_7 + 4\,\text{H}_2\text{SO}_4 \rightarrow 3\,\text{C}_4\text{H}_8\text{O} + \text{K}_2\text{SO}_4 + \text{Cr}_2(\text{SO}_4)_3 + 7\,\text{H}_2\text{O}\). Determine the theoretical mass of butan‑2‑one produced and, if the actual yield is \(78\%\), the mass actually obtained.
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About This Question
This is Gce Model Questions Vol1 2025 Chemistry Question 19. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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