A student made the following observations in the laboratory,A) Clean copper metal did not react with 1 molar Pb(NO3)2 solutionB) Clean lead metal dissolved in a 1 molar AgNO3 solution and crystals of Ag metal appearedC) Clean silver metal did not react with 1 molar Cu(NO3)2 solution.The order of decreasing reducing character of the three metals is :

Decreasing order of the reactivity of metals is K > Na > Ca > Mg > A> Zn > Fe > Pb > Cu > Hg > Ag > Au > Pt.

A student made the following observations in the laboratory,A) Clean copper metal did not react with 1 molar Pb(NO3)2 solutionB) Clean lead metal dissolved in a 1 molar AgNO3 solution and crystals of Ag metal appearedC) Clean silver metal did not react with 1 molar Cu(NO3)2 solution.The order of decreasing reducing character of the three metals is :

Decreasing order of the reactivity of metals is K > Na > Ca > Mg > A> Zn > Fe > Pb > Cu > Hg > Ag > Au > Pt.

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A student made the following observations in the laboratory,
A) Clean copper metal did not react with 1 molar Pb(NO₃)₂ solution
B) Clean lead metal dissolved in a 1 molar AgNO₃ solution and crystals of Ag metal appeared
C) Clean silver metal did not react with 1 molar Cu(NO₃)₂ solution.
The order of decreasing reducing character of the three metals is :

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Cu, Pb, Ag

Cu, Ag, Pb

Pb, Cu, Ag

Pb, Ag, Cu

answer is C.

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Detailed Solution

Decreasing order of the reactivity of metals is

K > Na > Ca > Mg > A𝑙> Zn > Fe > Pb > Cu > Hg > Ag > Au > Pt.

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