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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Ahmed Abdullah on November 14, 2007, 08:06:56 AM

Title: Which solution will turn blue when a copper plate is plunged?
Post by: Ahmed Abdullah 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

Title: Re: Which solution will turn blue when a copper plate is plunged?
Post by: AWK on November 14, 2007, 08:22:21 AM

which salt can react according to reaction (unbalabced)
Cu + Xⁿ⁺ = Cu²⁺ + X

Title: Re: Which solution will turn blue when a copper plate is plunged?
Post by: Borek on November 14, 2007, 09:09:55 AM

Please read forum rules (http://www.chemicalforums.com/index.php?page=forumrules). Check your textbook for reactivity series.