Neco Model Questions Vol1 2025 Chemistry Question 2

Practice objective / multiple choice question 2 from the 2025 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2025 Chemistry Objective / Multiple Choice Hard Difficulty
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2025 • CHEMISTRY • objective

A \(0.5\ \text{mol}\) sample of an unknown monohydric alcohol with molecular formula \(\mathrm{C}_{n}\mathrm{H}_{2n+2}\mathrm{O}\) is dehydrated with concentrated \(\mathrm{H_{2}SO_{4}}\) to give a single alkene. The alkene is then hydrogenated over a Pt catalyst with excess \(\mathrm{H_{2}}\) to give an alkane of molecular weight \(58\ \text{g mol}^{-1}\). Identify the alcohol (its molecular formula and IUPAC name). Subsequently, when the original \(0.5\ \text{mol}\) of this alcohol is completely combusted, calculate the mass of \(\mathrm{CO_{2}}\) produced.

Answer Options

A. C3H8O (propan-1-ol); 66 g CO₂
Correct Answer B. C4H10O (2‑methyl‑2‑propanol); 88 g CO₂
C. C5H12O (2‑methyl‑1‑butanol); 110 g CO₂
D. C4H10O (tert‑butanol); 80 g CO₂
Correct Answer
B
Correct Option:
C4H10O (2‑methyl‑2‑propanol); 88 g CO₂

About This Question

This is Neco Model Questions Vol1 2025 Chemistry Question 2. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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