Neco 2017 Chemistry Question 27
Practice objective / multiple choice question 27 from the 2017 Neco Chemistry examination.
A 2.00 g mixture of ethanol (\( \mathrm{C_{2}H_{5}OH} \)) and 2‑butanol (\( \mathrm{C_{4}H_{9}OH} \)) is oxidised with excess acidified potassium dichromate. Only the primary alcohol (ethanol) is oxidised to its corresponding carboxylic acid (acetic acid); the secondary alcohol is oxidised to a ketone and is not weighed. After the reaction the mass of acetic acid isolated is 0.90 g. Determine the mass of ethanol present in the original mixture (to three significant figures).
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About This Question
This is Neco 2017 Chemistry Question 27. It is one of the objective questions from the 2017 Neco Chemistry examination.
Difficulty level: Hard .
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