Question 47
HydrocarbonsUse the diagram above. The reaction taking place in flask G is known as
- A.hydrolysis
- B.double decomposition
- C.dehydration
- D.pyrolysis
Show the answer and explanation
Answer: C (dehydration)
Explanation
Hot concentrated sulphuric acid removes a water molecule from ethanol to make ethene: C2H5OH → C2H4 + H2O. Removing water is dehydration.