nomen552
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#1
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#1
Can someone help me with this??
Two tests are carried out on an aqueous solution of copper(II) sulfate, CuSO4(aq).

Test 1: Addition of potassium iodide solution
Test 2: Addition of barium chloride solution

Which of the following statements is / are true?

1:   Test 1 produces an off-white precipitate and a brown solution.

2:   Test 2 produces a white precipitate.

3:   Test 1 and Test 2 are both redox reactions.
A. 1, 2 and 3
B. Only 1 and 2
C. Only 2 and 3
D. Only 1
i know why option 1 and 2 are correct but i dont know why option 3 is wrong because i thought that the reaction that produces BaS04 is redox. if not what type of reaction is it??
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LonelyLion02
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would it not be a displacement reaction
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Theobromine
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#3
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(Original post by LonelyLion02)
would it not be a displacement reaction
I think you're right, since to my knowledge none of the involved species change oxidation state.
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