In a lab about the activity series, a solution of copper(ii)chloride is placed in a test tube with zinc metal. if zinc is higher up on the activity series, it will produce a reaction and replace the copper. bits of copper are seen in the bottom of the test tube. a good conclusion would be? a) zinc is lower on the activity series because there is no evidence of a reaction. b) zinc is higher on the activity series because there is no evidence of a reaction. c) zinc is lower on the activity series because there is clear evidence of a reaction. d) zinc is higher on the activity series because there is clear evidence of a reaction.

Option D, Zinc is higher on the activity series because there is clear evidence of a reaction.

Explanation:

It is very clear that a metal which is higher in activity will replace a metal having lower activity.  

Since, Zinc has higher activity than copper, it is very sure that it in a copper chloride solution it will replace copper and produce zinc chloride solution leaving behind copper as residue.  

Residues of copper is a clear evidence of reaction  

The chemical equation for this reaction would be -

Hence, option D is correct

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying