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Chlorine, bromine and iodine react with water. |
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Chlorine dissolves in water to produce a mixture of hydrochloric acid and hypochlorus acid. The light yellow solution
is called chlorine water(chlorine solution).
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Chlorine water is a bleaching agent. It bleached red litmus paper.
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Bromine dissolves slowly in water to produce a mixture of hydrobromic acid and hypobromus acid. The brown solution is
called bromine water (bromine solution).
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Bromine water is a bleaching agent but less effective compared to chlorine water. It bleached red litmus paper.
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Iodine does not dissolve easily in cold water. It only dissolves slightly in hot water to produce a mixture of
hydroiodic acid and hypoiodus acid. The brownish yellow solution is called iodine water(iodine solution).
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Iodine water is not a bleaching agent.
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The reactivity of the halogens with water decreases when going down Group 17. |
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