Gce Model Questions Vol1 2024 Chemistry Question 19

Practice objective / multiple choice question 19 from the 2024 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Hard Difficulty
Question 19 GCE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

A mixture of two isomeric alcohols, 1‑propanol (\(\mathrm{CH_3CH_2CH_2OH}\)) and 2‑propanol (\(\mathrm{CH_3CHOHCH_3}\)), is completely oxidised by acidified potassium dichromate. The oxidation products are propanal and acetone respectively. After the reaction, 12.0 g of propanal and 10.5 g of acetone are isolated. (i) Determine the mass of each alcohol present in the original mixture. (ii) Calculate the mass percent of 1‑propanol in the mixture.

Answer Options

A. 1‑propanol = 12.0 g; 2‑propanol = 11.3 g; mass percent of 1‑propanol = 51.5 %
B. 1‑propanol = 11.5 g; 2‑propanol = 11.8 g; mass percent of 1‑propanol = 49.3 %
C. 1‑propanol = 13.0 g; 2‑propanol = 10.3 g; mass percent of 1‑propanol = 55.8 %
Correct Answer D. 1‑propanol = 12.4 g; 2‑propanol = 10.9 g; mass percent of 1‑propanol = 53.4 %
Correct Answer
D
Correct Option:
1‑propanol = 12.4 g; 2‑propanol = 10.9 g; mass percent of 1‑propanol = 53.4 %

About This Question

This is Gce Model Questions Vol1 2024 Chemistry Question 19. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

View More Gce Model Questions Vol1 2024 Chemistry Questions More Gce 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