WAEC Chemistry 2018 Objective — Question 17
Question 17 of 50 from the West African Examinations Council (WAEC) Chemistry 2018 Objective paper, with the correct answer and a full explanation.
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When substance X was added to a solution of bromine water, the solution became colourless. X is likely to be
- A. propane
- B. propanoic acid
- C. propyneCorrect
- D. propanol
Explanation
A compound that decolourises bromine water must be unsaturated (an alkene or alkyne); propyne (an alkyne) fits this.
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