Adding NaOH to transition element ions

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What is the colour change when NaOH is added to a solution of Cu2+
Pale blue solution to pale blue precipitate
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What is the colour change when NaOH is added to a solution of Fe2+
Pale green solution to green precipitate
2 of 5
What is the colour change when NaOH is added to a solution of Fe3+
Pale yellow solution to orange/brown precipitate
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What is the colour change when NaOH is added to a solution of Mn2+
Pale pink solution to a light brown precipitate
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What is the colour change when NaOH is added to a solution of Cr3+
Violet solution to green precipitate. Adding excess NaOH gives a green solution
5 of 5

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Card 2

Front

What is the colour change when NaOH is added to a solution of Fe2+

Back

Pale green solution to green precipitate

Card 3

Front

What is the colour change when NaOH is added to a solution of Fe3+

Back

Preview of the front of card 3

Card 4

Front

What is the colour change when NaOH is added to a solution of Mn2+

Back

Preview of the front of card 4

Card 5

Front

What is the colour change when NaOH is added to a solution of Cr3+

Back

Preview of the front of card 5

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