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Topic: Which solution will turn blue when a copper plate is plunged?  (Read 3179 times)

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Offline Ahmed Abdullah

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Which solution will turn blue when a copper plate is plunged?
« on: November 14, 2007, 08:06:56 AM »

There are colourless solution of some salt in four separate test tubes. We plunge a piece of copper plate in each of the test tubes. Suppose the following salts were in the test tubes. Which solution will change to form a blue solution?

a) NaCl b) AgNO3 c) Cd(NO3)2 d) ZnSO4
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Offline AWK

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Re: Which solution will turn blue when a copper plate is plunged?
« Reply #1 on: November 14, 2007, 08:22:21 AM »
which salt can react according to reaction (unbalabced)
Cu + Xn+ = Cu2+ + X
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Offline Borek

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Re: Which solution will turn blue when a copper plate is plunged?
« Reply #2 on: November 14, 2007, 09:09:55 AM »
Please read forum rules. Check your textbook for reactivity series.
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