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Chlorine is widely used in water treatment plants - CIE - A-Level Chemistry - Question 16 - 2015 - Paper 1
Question 16
Chlorine is widely used in water treatment plants. Which reaction takes place when chlorine dissolves in water? A Cl₂ + H₂O → HCl + HClO B 2Cl₂ + 2H₂O → 3HCl + ... show full transcript
Worked Solution & Example Answer:Chlorine is widely used in water treatment plants - CIE - A-Level Chemistry - Question 16 - 2015 - Paper 1
Step 1
Identify the correct reaction when chlorine dissolves in water
Answer
The reaction that occurs when chlorine dissolves in water is represented by option A:
ightarrow ext{HCl} + ext{HClO}$$ This reaction shows chlorine gas reacting with water molecules to form hydrochloric acid (HCl) and hypochlorous acid (HClO).