Post-UTME Chemistry 2015 Objective — Question 13

Question 13 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2015 Objective paper, with the correct answer and a full explanation.

2H2O(l) + X2(g) <=> H2O2(aq) + 2HX(aq). X in the reaction above is

A. chlorine
B. bromine
C. iodine
D. fluorineCorrect

Explanation

This reaction, where a halogen reacts with water to produce hydrogen peroxide and a hydrogen halide, is characteristic of fluorine, the most reactive halogen.

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