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Which metal solution would react the fastest with Cr? A)CuCl_2 B) ZnCl_2 C) LiCl D) SnCl_2 ...

Question:

Which metal solution would react the fastest with Cr?

A)CuCl_2

B) ZnCl_2

C) LiCl

D) SnCl_2

E) FeCl_2

F) SrCl_2

Reactivity of Metals

Metals are chemical substances that are good conductors of both heat and electricity. The reactivity of metals is determined by the reduction potentials that they possess. Metals are ductile and malleable.

Answer and Explanation:

Cr has a reduction potential of {eq}E_o {/eq} =-0.91 V

among all the metals, Cu has a positive reduction potential.{eq}E_o {/eq} = + 0.34 V

Cu is readily reduced as compared to all the other remaining having negative reduction potentials, they cannot be reduced by Cr

Therefore the solution that would react the fastest with Cr is {eq}CuCl_2 {/eq}


Learn more about this topic:

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Metals on the Periodic Table: Definition & Reactivity

from General Studies Science: Help & Review

Chapter 27 / Lesson 45
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