WAEC Chemistry 2020 Objective — Question 20
Question 20 of 50 from the West African Examinations Council (WAEC) Chemistry 2020 Objective paper, with the correct answer and a full explanation.
Advertisement
The following molecules have double covalent bonds between two atoms except A. oxygen B. carbon (IV) oxide C. ethene D. water.
- A. oxygen
- B. carbon (IV) oxide
- C. ethene
- D. waterCorrect
Explanation
Oxygen (O=O), Carbon (IV) oxide (O=C=O) and Ethene (C=C) all have double covalent bonds; water (H-O-H) has only single covalent bonds.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.