Waec Chemistry Past Questions For Year 2014
Question 36
Which type of reaction is illustrated by the following equation? C12H26 → 5C 2H4 + C 2H6
- A. Addition
- B. Cracking
- C. Hydrogenation
- D. Polymerization
Question 37
Which of the following compounds determines the octane rating of petrol?
- A. 1,2,3 - trimethyl pentane
- B. 2,3,5 - trimethyl octane
- C. 2,3,5 - trimethyl pentane
- D. 2,2,4 - trimethyl pentane
Question 38
The purity of a solid sample can best be determined by its?
- A. boiling point
- B. melting point
- C. conductivity
- D. solubility
Question 39
The production of biogas from the fermentation of waste materials is an example of
- A. combustion
- B. incineration
- C. refining
- D. recycling
Question 40
Which of the following organic compounds could be represented by the empirical formula CH2O?
- A. Ethanal
- B. Ethane
- C. Ethanol
- D. Ethanoic acid
