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Question
Sodium hydroxide solution can be used to distinguish between i. iron (II) sulphate solution and (ii) iron (III) sulphate solution; because these solutions give different coloured precipitates with sodium hydroxide solution. Give the colour of the precipitate formed with each of the solution.
Solution
Sodium hydroxide solution gives dirty green coloured precipitates with iron (II)sulphate solution.
With iron (III) sulphate solution sodium hydroxide solution gives reddish brown precipitates.
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