Alkenes Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. What is the general formula of the alkenes?
- A. CnH2n+2
- B. CnH2n
- C. CnHn
- D. CnH2n-2
2. What colour change indicates a positive test for an alkene with bromine water?
- A. Colourless to orange
- B. Orange to colourless
- C. Blue to red
- D. White to purple
3. Which formula represents ethene?
- A. C2H6
- B. C2H4
- C. C3H6
- D. CH4
4. Which process is used to produce alkenes from larger hydrocarbons in crude oil?
- A. Fermentation
- B. Electrolysis
- C. Cracking
- D. Distillation
5. A student tests two unknown hydrocarbons, X and Y, with bromine water. X turns the bromine water colourless; Y does not change it. What can be concluded?
- A. X is an alkane and Y is an alkene
- B. X is an alkene and Y is an alkane
- C. Both are alkenes
- D. Neither contains carbon