2 6
Name the type of reaction taking place in each of Steps 1 and 2.
(2)
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(c) In a separate reaction, aqueous sodium hydroxide was added to a solution
containing iron(II) sulfate. A green precipitate formed that turned brown on
standing in air.
Identify the green precipitate and explain why it turns brown on standing in air.
(3)
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(Total for Question 9 = 8 marks)