Neco Model Questions Vol1 2019 Chemistry Question 11
Practice objective / multiple choice question 11 from the 2019 Neco Model Questions Vol1 Chemistry examination.
An unknown monohydric alcohol with the general formula \(C_nH_{2n+2}O\) is weighed (2.00 g) and completely combusted. The combustion produces 2.20 g of \(CO_2\) and 0.60 g of \(H_2O\). The oxidation of the same alcohol with excess \(K_2Cr_2O_7\) in acidic medium gives a carboxylic acid that is isolated and weighed (0.55 g).\n\n(a) Determine the molecular formula of the alcohol and state whether it is primary, secondary or tertiary.\n(b) Calculate the theoretical mass of the carboxylic acid expected from the oxidation and the percent yield based on the observed 0.55 g.
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This is Neco Model Questions Vol1 2019 Chemistry Question 11. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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