For the reduction of NO3- ion in an aqueous solution E- is -0-96 V- Values of E- for some metal ions are given below-V2- aq-2e- - V- E0-1-19 VFe3- aq-3e- - Fe- E- - - 0-04 VAu3- aq-3e- - Au- E- - - 1-40 VHg2- aq-2e- - Hg- E0-0-86 VThe pairs of metals that is-are oxidised by NO3- in aqueous solution is are

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Electrochemical Series

For the reduc...

Question

For the reduction of $N O_{3}^{-}$ ion in an aqueous solution $E^{\circ}$ is +0.96 V. Values of $E^{\circ}$ for some metal ions are given below:
$V^{2 +} (a q) + 2 e^{-} \to V; E^{0} = - 1.19 V$
$F e^{3 -} (a q) + 3 e^{-} \to F e; E^{\circ} = - 0.04 V$
$A u^{3 +} (a q) + 3 e^{-} \to A u; E^{\circ} = + 1.40 V$
$H g^{2 +} (a q) + 2 e^{-} \to H g; E^{0} = + 0.86 V$
The pair(s) of metals that is/are oxidised by $N O_{3}^{-}$ in aqueous solution is (are)

V and Hg

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Hg and Fe

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Fe and Au

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Fe and V

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Fe and V
Metals with $E^{\circ}$ value less than 0.96 V will be able to reduce $N O_{3}^{-}$ in aqueous solution. Therefore, metals $V (E^{\circ} = - 1.19 V), F e (E^{\circ} = - 0.04 V), H g (E^{\circ} = 0.86 V)$ will all reduce $N O_{3}^{-}$ but $A u (E^{\circ} = 1.40 V)$ cannot reduce $N O_{3}^{-}$ in aqueous solution.

Suggest Corrections

Similar questions

Q.
For the reduction of

N O_{3}^{-}

ion in an aqueous solution

E^{\circ}

is +0.96 V. Values of

E^{\circ}

for some metal ions are given below:

V^{2 +} (a q) + 2 e^{-} \to V; E^{0} = - 1.19 V

F e^{3 -} (a q) + 3 e^{-} \to F e; E^{\circ} = - 0.04 V

A u^{3 +} (a q) + 3 e^{-} \to A u; E^{\circ} = + 1.40 V

H g^{2 +} (a q) + 2 e^{-} \to H g; E^{0} = + 0.86 V

The pair(s) of metals that is/are oxidised by

N O_{3}^{-}

in aqueous solution is (are)

Q. For the reduction of

N O_{3}^{-}

ion in an aqueous solution,

E^{o}

+ 0.96 V

. Values of

E^{o}

for some metal ions are given below.

V^{2 +} (aq) + 2 e^{-} \to V E^{0} = - 1.19 V

F e^{3 +} (aq) + 3 e^{-} \to F e E^{0} = - 0.04 V

A u^{3 +} (aq) + 3 e^{-} \to A u E^{0} = + 1.40 V

H g^{2 +} (aq) + 2 e^{-} \to H g E^{0} = + 0.86 V

The pair(s) of metals that is (are) oxidised by

N O_{3}^{-}

in aqueous solution is (are)

For the reduction of $N O_{3}^{⊖}$ ion in an aqueous solution, $E^{⊖}$ is +0.96 V, the values of $E^{⊖}$ for some metal ions are given below:
$(i) V^{2 +} (a q) + 2 e^{-} \to V; E^{⊖} = - 1.19 V$
$(i i) F e^{3 +} (a q) + 3 e^{-} \to F e; E^{⊖} = - 0.04 V$
$(i i i) A u^{3 +} (a q) + 3 e^{-} \to A u; E^{⊖} = + 1.40 V$
$(i v) H g^{2 +} (a q) + 2 e^{-} \to H g; E^{⊖} = + 0.86 V$

The pair(s) of metals that is/are oxidized by $N O_{3}^{⊖}$ in aqueous solution is/are
(IIT-JEE, 2010)

Q. Which of the following pair of metals that is/are oxidized by

N O_{3}^{-}

in aqueous solution?

For the reduction of

N O_{3}^{-}

ion in an aqueous solution,

E^{0}

+ 0.96 V

E^{0}

for metal ions are given below.

V^{2 +} (a q) + 2 e^{-} \to V (s); E^{0} = - 1.19 V

F e^{3 +} (a q) + 3 e^{-} \to F e (s); E^{0} = - 0.04 V

A u^{3 +} (a q) + 3 e^{-} \to A u (s); E^{0} = + 1.40 V

H g^{2 +} (a q) + 2 e^{-} \to H g (s); E^{0} = + 0.86 V

For the reduction of $N O_{3}^{-}$ ion in an aqueous solution $E^{0}$ is + 0.96 V. Values of $E^{0}$ for some metal ions are given below
$V^{2 +} (a q) + 2 e^{-} \to V; E^{0} = - 1.19 V F e^{3 +} (a q) + 3 e^{-} \to F e; E^{0} = - 0.04 V A u^{3 +} (a q) + 3 e^{-} \to A u; E^{0} = - 1.40 V H g^{2 +} (a q) + 2 e^{-} \to H g; E^{0} = - 0.86 V$
The pair (s) of metals that is/ are oxidized by $N O_{3}^{-}$ in aqueous solution is (are)

Join BYJU'S Learning Program

The correct option is D Fe and VMetals with E∘ value less than 0.96 V will be able to reduce NO−3 in aqueous solution. Therefore, metals V(E∘=−1.19V),Fe(E∘=−0.04V),Hg(E∘=0.86V) will all reduce NO−3 but Au(E∘=1.40V) cannot reduce NO−3 in aqueous solution.