Identify the reaction from following having top position in EMF series (Std.red. potential) according to their electrode potential at 298 K

Question

Identify the reaction from following having top position in EMF series (Std.red. potential) according to their electrode potential at 298 K (A) Mg2+ + 2e- → Mg(s) (B) Fe2+ + 2e- → Fe(s) (C) Au3+ + 3e- → Au(s) (D) K++le-→ K(s)

Tardigrade Admin · Accepted Answer

According to electrode potential series, Au+3+3e- → Au(s) (has topmost position ⇒ max. SRP)

Q. Identify the reaction from following having top position in EMF series (Std.red. potential) according to their electrode potential at 298 K

$M g^{2 +} + 2 e^{-} \to M g_{(s)}$

$F e^{2 +} + 2 e^{-} \to F e_{(s)}$

$A u^{3 +} + 3 e^{-} \to A u_{(s)}$

$K^{+} + l e^{-} \to K_{(s)}$

According to electrode potential series,
$A u^{+ 3} + 3 e^{-} \to A u_{(s)}$ (has topmost position $\Rightarrow$ max. SRP)

Q. Identify the reaction from following having top position in EMF series (Std.red. potential) according to their electrode potential at 298 K

Mg2++2e−→Mg(s)​

Fe2++2e−→Fe(s)​

Au3++3e−→Au(s)​

K++le−→K(s)​

According to electrode potential series, Au+3+3e−→Au(s)​ (has topmost position ⇒ max. SRP)

$M g^{2 +} + 2 e^{-} \to M g_{(s)}$

$F e^{2 +} + 2 e^{-} \to F e_{(s)}$

$A u^{3 +} + 3 e^{-} \to A u_{(s)}$

$K^{+} + l e^{-} \to K_{(s)}$

According to electrode potential series,
$A u^{+ 3} + 3 e^{-} \to A u_{(s)}$ (has topmost position $\Rightarrow$ max. SRP)