Copper displaces which of the following metal | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) According to the electrochemical series,a metal can displace another metal from its salt solution if it is more reactive (i.e.,has a more negative

Vedclass · Accepted Answer

$AgNO_3$

Vedclass · Answer

(A) According to the electrochemical series,a metal can displace another metal from its salt solution if it is more reactive (i.e.,has a more negative standard reduction potential). The standard reduction potentials $(E^\circ)$ are: $Zn^{2+}/Zn = -0.76 \ V$,$Fe^{2+}/Fe = -0.44 \ V$,$Cu^{2+}/Cu = +0.34 \ V$,and $Ag^+/Ag = +0.80 \ V$. Since $Cu$ has a lower reduction potential than $Ag$,it is more reactive than $Ag$ and can displace it from its salt solution. $Cu$ is less reactive than $Zn$ and $Fe$,so it cannot displace them. The reaction is: $Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$.

Copper displaces which of the following metals from their salt solutions?

Similar Questions

In batteries and fuel cells,which energy is converted into which energy?

In which cell is the free energy of a chemical reaction directly converted into electricity?

In a galvanic cell,the salt bridge is used to:

The reaction $Zn_{(s)} + 2AgCl_{(s)} \to Zn^{2+}_{(aq)} + 2Ag_{(s)} + 2Cl^{-}_{(aq)}$ will take place in which of the following electrochemical cells?

Which of the following statements is correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module