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Which of the following is the correct order of chemical reactivity with water according to electrochemical series?

$\begin{array}{1 1}(a)\;K > Mg > Zn > Cu\\(b)\;K > Mg > Cu > Zn\\(c)\;Cu > Zn > K > Mg\\(d)\;Mg > K > Cu > Zn\end{array}$

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Reactivity of metals depends on I.E.Lowest is the value of I.E,more is the reactivity.
Hence (a) is the correct answer.
answered Jan 27, 2014 by sreemathi.v
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