JAMB Chemistry 2007 Objective — Question 35
Question 35 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2007 Objective paper, with the correct answer and a full explanation.
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If chlorine is bubbled into water and the resulting yellowish-green solution is exposed to bright sunlight for a while, the solution will decompose giving out
- A. oxygen, hydrogen and chlorine
- B. oxygen and leaving behind aqueous hydrochloric acidCorrect
- C. oxygen, thereby producing hypochlorous acid
- D. chlorine and oxygen
Explanation
Chlorine water contains hypochlorous acid (HOCl), which decomposes in sunlight to release oxygen, leaving aqueous hydrochloric acid behind.
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