Chlorine water loses its yellow colour on standing because:
(a) HCl gas is produced, due to the action of sunlight.
(b) a mixture of HOCl and HCl is produced in the presence of light
(c) HOCl and hydrogen gas is produced
(d) a mixture of HCl and ClO3 is produced, due to the action of sunlight
(a) HCl gas is produced, due to the action of sunlight.
(b) a mixture of HOCl and HCl is produced in the presence of light
(c) HOCl and hydrogen gas is produced
(d) a mixture of HCl and ClO3 is produced, due to the action of sunlight
Answers & Comments
Answer:
b.
Explanation:
Due to the formation of hydrochloric acid and hypochlorous acid, chlorine water loses yellow colour on standing.
Verified answer
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Chlorine water loses its yellow color on standing because:
(b) a mixture of HOCl (hypochlorous acid) and HCl (hydrochloric acid) is produced in the presence of light.
Exposure to light causes the conversion of chlorine (Cl2) in water to hypochlorous acid (HOCl) and hydrochloric acid (HCl), which do not have the yellow color associated with chlorine gas. This is why the yellow color disappears.