Waec Model Questions Vol1 2018 Chemistry Question 44

Practice objective / multiple choice question 44 from the 2018 Waec Model Questions Vol1 Chemistry examination.

Waec Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Hard Difficulty
Question 44 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

A 10.0 g sample containing only ethanol (C₂H₅OH) and 2‑propanol (CH₃CHOHCH₃) is completely oxidised by excess acidic potassium dichromate to give only CO₂ and H₂O. The volume of CO₂ collected at NTP is 10.1 L. Determine the mass percent of ethanol in the original mixture.

Answer Options

A. 72.5 %
B. 67.4 %
Correct Answer C. 74.8 %
D. 81.2 %
Correct Answer
C
Correct Option:
74.8 %

About This Question

This is Waec Model Questions Vol1 2018 Chemistry Question 44. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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