JAMB Biology 2015 Objective — Question 14

Question 14 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

Which of the following halogens is the most reactive?

A. Cl₂
B. I₂
C. Br₂
D. F₂Correct

Explanation

Fluorine is the most electronegative element and the most reactive halogen; reactivity decreases down the group: F > Cl > Br > I.

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