Igcse Model Questions Vol1 2024 Chemistry Question 10

Practice objective / multiple choice question 10 from the 2024 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2024 Chemistry Objective / Multiple Choice Hard Difficulty
Question 10 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • objective

5.00 g of propan‑1‑ol (\(C_{3}H_{8}O\)) is oxidised with acidified potassium dichromate solution. After work‑up, 5.80 g of propanoic acid (\(C_{3}H_{6}O_{2}\)) is isolated. (a) Calculate the theoretical mass of propanoic acid that could be formed and the percent yield of the reaction. (b) If the same amount of propan‑1‑ol were oxidised with pyridinium chlorochromate (PCC) under anhydrous conditions, what would be the major product? State its IUPAC name.

Answer Options

A. Theoretical mass = 6.16 g; percent yield = 94.2 %; product with PCC = acetaldehyde
Correct Answer B. Theoretical mass = 6.16 g; percent yield = 94.2 %; product with PCC = propanal
C. Theoretical mass = 5.80 g; percent yield = 94.2 %; product with PCC = propanal
D. Theoretical mass = 6.16 g; percent yield = 88.5 %; product with PCC = propanal
Correct Answer
B
Correct Option:
Theoretical mass = 6.16 g; percent yield = 94.2 %; product with PCC = propanal

About This Question

This is Igcse Model Questions Vol1 2024 Chemistry Question 10. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Hard .

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