| A student made the following observations in the laboratory: |
| (i) Clean copper metal did not react with 1 molar \[Pb{{(N{{O}_{3}})}_{2}}\] solution. |
| (ii) Clean lead metal dissolved in a 1 molar \[AgN{{O}_{3}}\]solution and crystals of Ag metal appeared. |
| (iii) Clean silver metal did not react with 1 molar \[Cu{{(N{{O}_{3}})}_{2}}\] solution. |
| The order of decreasing reducing character of the three metals is |
A) \[Cu,Pb,Ag\]
B) \[Cu,Ag,Pb\]
C) \[Pb,Cu,Ag\]
D) \[Pb,Ag,Cu\]
Correct Answer: C
Solution :
[c]: From observations (i), (ii) and (iii), reducing character of metals are \[Pb>Cu,Pb>\] Ag and \[Cu>Ag\]. Hence, the order of decreasing reducing character is \[Pb>Cu>Ag\].
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