Neco Model Questions Vol1 2021 Chemistry Question 30

Practice objective / multiple choice question 30 from the 2021 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Hard Difficulty
Question 30 NECO_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

A 2.00 g sample of an unknown alcohol with molecular formula \(C_{4}H_{10}O\) gives a positive iodoform test. (a) Identify the structure of the alcohol. (b) Write the balanced equation for its oxidation with acidic \(Na_{2}Cr_{2}O_{7}\) to give the corresponding carbonyl compound. (c) Calculate the theoretical mass of the carbonyl product obtained from the 2.00 g of alcohol.

Answer Options

A. Alcohol: 1‑butanol; oxidation: \\(CH_{3}CH_{2}CH_{2}CH_{2}OH + [O] \\rightarrow CH_{3}CH_{2}CH_{2}CHO + H_{2}O\\); theoretical ketone mass = 1.80 g
Correct Answer B. Alcohol: 2‑butanol; oxidation: \(CH_{3}CH(OH)CH_{2}CH_{3} + [O] \rightarrow CH_{3}COCH_{2}CH_{3} + H_{2}O\); theoretical ketone mass = 1.95 g
C. Alcohol: 2‑butanol; oxidation: \\(CH_{3}CH(OH)CH_{2}CH_{3} + [O] \\rightarrow CH_{3}CH_{2}CH_{2}CH_{3} + H_{2}O\\); theoretical ketone mass = 1.95 g
D. Alcohol: 2‑methyl‑1‑propanol; oxidation: \\((CH_{3})_{2}CHCH_{2}OH + [O] \\rightarrow (CH_{3})_{2}CHCOOH + H_{2}O\\); theoretical ketone mass = 2.10 g
Correct Answer
B
Correct Option:
Alcohol: 2‑butanol; oxidation: \(CH_{3}CH(OH)CH_{2}CH_{3} + [O] \rightarrow CH_{3}COCH_{2}CH_{3} + H_{2}O\); theoretical ketone mass = 1.95 g

About This Question

This is Neco Model Questions Vol1 2021 Chemistry Question 30. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

View More Neco Model Questions Vol1 2021 Chemistry Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support