Neco Model Questions Vol1 2017 Chemistry Question 15

Practice objective / multiple choice question 15 from the 2017 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2017 Chemistry Objective / Multiple Choice Medium Difficulty
Question 15 NECO_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • objective

A cyclic ether with molecular formula \(\text{C}_4\text{H}_8\text{O}\) is treated with aqueous \(\text{H}_2\text{SO}_4\) under reflux. The reaction yields a diol \(\text{B}\) with formula \(\text{C}_4\text{H}_{10}\text{O}_2\). Subsequent oxidation of \(\text{B}\) with sodium hypochlorite produces a dicarboxylic acid \(\text{C}\) having formula \(\text{C}_4\text{H}_6\text{O}_4\). (a) Identify the cyclic ether \(\text{A}\). (b) Write the IUPAC name of the acid \(\text{C}\). (c) Calculate the molar mass of \(\text{C}\).

Answer Options

Correct Answer A. A = tetrahydrofuran; C = succinic acid (butan‑1,4‑dioic acid); Molar mass = 118.09 g mol⁻¹
B. A = oxetane; C = succinic acid (butan‑1,4‑dioic acid); Molar mass = 118.09 g mol⁻¹
C. A = tetrahydropyran; C = glutaric acid (pentan‑1,5‑dioic acid); Molar mass = 132.12 g mol⁻¹
D. A = tetrahydrofuran; C = adipic acid (hexan‑1,6‑dioic acid); Molar mass = 146.14 g mol⁻¹
Correct Answer
A
Correct Option:
A = tetrahydrofuran; C = succinic acid (butan‑1,4‑dioic acid); Molar mass = 118.09 g mol⁻¹

About This Question

This is Neco Model Questions Vol1 2017 Chemistry Question 15. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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