WAEC Chemistry 2021 Objective — Question 24
Question 24 of 50 from the West African Examinations Council (WAEC) Chemistry 2021 Objective paper, with the correct answer and a full explanation.
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24. Which of the following statements about Group VII elements is correct?
- A. They are present in the same physical state
- B. They are strong reducing agents
- C. Their reactivity decreases down the groupCorrect
- D. They exist as monoatomic molecules
Explanation
Group VII (halogens) reactivity decreases down the group as atomic size increases and it becomes harder to attract an extra electron.
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