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Standard X

Chemistry

Electrochemical Series

MetalElectrod...

Question

Metal Electrode potential(V)
$C u^{2 +}$ 0.34
$A g^{+}$ 0.80
$A u^{3 +}$ 1.50
Which metal ion will act as the best oxidizing agent?

C u^{2 +}

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A g^{+}

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A u^{3 +}

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None of these

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Solution

The correct option is B $A u^{3 +}$
According to the electrochemical series, metals lying towards the bottom of the series have high value of positive standard electrode potential. These metals can easily accept electrons. Hence the metals at the bottom of the series are good oxidizing agents.
Among the above mentioned metal ions, $A u^{3 +}$ has the highest positive standard electrode potential. Hence $A u^{3 +}$ can most easily accept electrons. Hence it is the best oxidizing agent.

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Similar questions

The standard reducation potentials of

$Z n^{2 +} | Z n, C u^{2 +} | C u$ and $A g^{+} | A g$

are respectively -0.76, 0.34 and 0.8 V. The following cells were constructed.

a) $Z n | Z n^{2 +} | | C u^{2 +} | C u$

b) $Z n | Z n^{2 +} | | A g^{+} | A g$

c) $C u | C u^{2 +} | | A g^{+} | A g$

What is the correct order $E {^{0}}_{c e l l}$ of these cells?

Given: $F e_{(s)} \to F e^{2 +} + 2 e^{-}; E^{o} = + 0.44 V$

$P b_{(s)} \to P b^{2 +} + 2 e^{-}; E^{o} = + 0.13 V$

$A g^{+} e^{-} \to A g; E^{o} = + 0.8 V$

$C u^{2 +} 2 e^{-} \to C u; E^{o} = + 0.34 V$

Which of the following metals will oxidise iron?

a) $A g$

b) $C u$

c) $P b$

d) None of these

Q. The standard electrode potentials of the electrodes

C u^{2 +} / C u

and

A g^{+} / A g

are 0.337 and 0.799 V respectively. What would be the concentration of

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Q. In the cell

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containing 1 M

C u^{2 +}

and 1 M

A g^{+}

ions, 9.65 ampere current is passed for 1 hour. Select the correct statement.

Q. Calculate the concentration of silver ions in the cell constructed by using

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0.422 V

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Metal	Electrode potential(V)
$C u^{2 +}$	0.34
$A g^{+}$	0.80
$A u^{3 +}$	1.50

MetalElectrode potential(V)Cu2+0.34Ag+0.80Au3+1.50Which metal ion will act as the best oxidizing agent?

Metal Electrode potential(V)
$C u^{2 +}$ 0.34
$A g^{+}$ 0.80
$A u^{3 +}$ 1.50
Which metal ion will act as the best oxidizing agent?