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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.
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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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