A) 6
B) 7
C) less than 6
D) more than 7
Correct Answer: C
Solution :
When chlorine is passed through the solution of \[{{\text{H}}_{\text{2}}}{{\text{O}}_{\text{2}}}\text{,}\]hydrochloric acid is produced. Due to this HCl acidity of solution increases. Hence, pH will decreased. \[{{\text{H}}_{2}}{{O}_{2}}+C{{l}_{2}}\xrightarrow{{}}2HCl+{{O}_{2}}\] So, pH will be less than 6.
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