MCQ
Using the standard electrode potentials given below, identify the correct statements from the following:
$Fe ^{2+}+2 e ^{-} \longrightarrow Fe ; E ^0=-0.44 V$
$Cu ^{2+}+2 e ^{-} \longrightarrow Cu ; E ^0=+0.34 V$
$Ag ^{+}+ e ^{-} \longrightarrow Ag ; E ^0=+0.80 V$
(I) Copper can displace iron from $FeSO _4$ solution
(II) Iron can displace copper from $CuSO _4$ solution
(III) Silver can displace copper from $CuSO _4$ solution
(IV) Iron can displace silver from $AgNO _3$ solution
$Fe ^{2+}+2 e ^{-} \longrightarrow Fe ; E ^0=-0.44 V$
$Cu ^{2+}+2 e ^{-} \longrightarrow Cu ; E ^0=+0.34 V$
$Ag ^{+}+ e ^{-} \longrightarrow Ag ; E ^0=+0.80 V$
(I) Copper can displace iron from $FeSO _4$ solution
(II) Iron can displace copper from $CuSO _4$ solution
(III) Silver can displace copper from $CuSO _4$ solution
(IV) Iron can displace silver from $AgNO _3$ solution
- AI, IV
- ✓II, IV
- CI, II
- DII, III