Neco Model Questions Vol1 2025 Chemistry Question 22
Practice objective / multiple choice question 22 from the 2025 Neco Model Questions Vol1 Chemistry examination.
A solution is prepared by dissolving 2.00 g of an unknown monohydric alcohol in 100.0 g of water. The freezing point of the solution is observed to be -0.81 °C. Given the cryoscopic constant of water \(K_f = 1.86\;^\circ\text{C·kg·mol}^{-1}\), determine (a) the molar mass of the alcohol and (b) identify the alcohol from the list: methanol (CH₃OH), ethanol (CH₃CH₂OH), propan‑1‑ol (CH₃CH₂CH₂OH), butan‑1‑ol (CH₃CH₂CH₂CH₂OH).
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About This Question
This is Neco Model Questions Vol1 2025 Chemistry Question 22. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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