Neco Model Questions Vol1 2021 Chemistry Question 50

Practice objective / multiple choice question 50 from the 2021 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Hard Difficulty
Question 50 NECO_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

2‑Methyl‑1‑propanol (\(\text{C}_4\text{H}_{10}\text{O}\)) is oxidised with acidified potassium dichromate. The reaction is carried out with 10.0 g of the alcohol and the isolated carboxylic acid product weighs 5.0 g. (i) Determine the percent yield of the oxidation. (ii) Calculate the mass of molecular oxygen (\(\text{O}_2\)) that actually participated in the reaction.

Answer Options

A. Percent yield = 42.1 %; O₂ consumed = 1.20 g
Correct Answer B. Percent yield = 42.1 %; O₂ consumed = 0.91 g
C. Percent yield = 35.0 %; O₂ consumed = 1.10 g
D. Percent yield = 50.0 %; O₂ consumed = 0.75 g
Correct Answer
B
Correct Option:
Percent yield = 42.1 %; O₂ consumed = 0.91 g

About This Question

This is Neco Model Questions Vol1 2021 Chemistry Question 50. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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