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Q.

Correct order of the tendency of metals to loose electrons is

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a

Zn > Cu > Ag

b

Cu > Zn > Ag

c

Zn > Cu < Ag

d

Zn < Cu < Ag

answer is A.

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Detailed Solution

\large E_{Z{n^{ + 2}}/Zn}^0\; = \; - 0.76V
\large E_{C{u^{ + 2}}/Cu}^0\; = \; + 0.34V
\large E_{A{g^ + }/Ag}^0\; = \; + 0.8V

Greatest tendency to undergo reduction is for Ag+
Correct decreasing tendency to undergo reduction is Ag+ > Cu+2 > Zn+2

Correct decreasing tendency to undergo oxidation is Ag <Cu<Zn (or) Zn>Cu>Ag

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