WAEC Chemistry 2019 Objective — Question 40
Question 40 of 50 from the West African Examinations Council (WAEC) Chemistry 2019 Objective paper, with the correct answer and a full explanation.
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Consider the following reaction equation: C2H2 –(H2)→ X –(H2)→ Y. X and Y respectively are
- A. ethane and ethene
- B. ethene and ethaneCorrect
- C. ethyne and ethane
- D. ethane and ethyne
Explanation
Ethyne (C2H2) is hydrogenated to ethene (X), which is further hydrogenated to ethane (Y): C2H2→C2H4→C2H6.
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