WAEC Chemistry 2025 Objective — Question 9
Question 9 of 50 from the West African Examinations Council (WAEC) Chemistry 2025 Objective paper, with the correct answer and a full explanation.
Advertisement
Which of the following elements is a metalloid?
- A. aluminium
- B. seleniumCorrect
- C. phosphorus
- D. sodium
Explanation
Metalloids show properties of both metals and non-metals. Common metalloids include boron, silicon, arsenic and selenium. Aluminium and sodium are metals while phosphorus is a non-metal.
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.