Neco Model Questions Vol1 2018 Chemistry Question 5
Practice objective / multiple choice question 5 from the 2018 Neco Model Questions Vol1 Chemistry examination.
A mixture of two isomeric alcohols, each with molecular formula \(C_{3}H_{8}O\), is oxidised with acidic dichromate (K\(_2\)Cr\(_2\)O\(_7\)/H\(_2\)SO\(_4\)). Alcohol A gives a single aldehyde which on further oxidation yields a carboxylic acid that boils at 141 °C. Alcohol B gives a single ketone that does not undergo further oxidation under the same conditions. After oxidation, the mixture is treated with NaOH and heated, resulting in the evolution of CO\(_2\) gas. Identify the structures of A and B, and calculate the moles of CO\(_2\) evolved when 0.050 mol of the original mixture (containing equal moles of A and B) is fully oxidised as described.
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This is Neco Model Questions Vol1 2018 Chemistry Question 5. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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