Which of the following is NOT the correct ord | vedclass

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(B) The reactivity series of metals in decreasing order is: $K > Na > Ca > Mg > Al > Zn > Fe > Pb > H > Cu > Hg > Ag > Au$. Checking the options: $A$:

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$Na > Al > Mg > Ca$

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(B) The reactivity series of metals in decreasing order is: $K > Na > Ca > Mg > Al > Zn > Fe > Pb > H > Cu > Hg > Ag > Au$. Checking the options: $A$: $K > Ca > Mg > Zn$ is correct. $B$: $Na > Al > Mg > Ca$ is incorrect because $Ca$ is more reactive than $Mg$ and $Al$. The correct order should be $Na > Ca > Mg > Al$. $C$: $Na > Al > Fe > Cu$ is correct. $D$: $Ca > Zn > Cu > Ag$ is correct. Therefore,the incorrect order is $B$.

Which of the following is $NOT$ the correct order of reactivity of metals?

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