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Physical Properties of Metals

The order of ...

Question

The order of reactivity of metals is
(a) K > Na > Ca > Au
(b) K > Ca > Na > Mg
(c) Fe > Na > Mg > Au
(d) Cu > Fe > K > Na

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Solution

(a) K > Na > Ca > Au
The order of reactivity of metals depend upon the position of the metals in the activity series. In the given options, the correct order of reactivity of metals is K > Na > Ca > Au.

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