Consider two reactions given below-Reaction 1 -A aq- An- aq-ne-E-1-88 VReaction 2-B aq- Bn- aq-ne-E-2-88 VWhich of the following options is correct-

For nbsp;Reaction 1 : A (aq.)⇌ A^n+ (aq.)+ne^ E^∘=1.88 V Since ,E^∘ gt;0, the forward reaction is spontaneous and hence reactant A has the tendency to oxi ...

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Standard XII

Chemistry

Le Chatelier's Principle for Del N Lesser Than Zero

Consider two ...

Question

Consider two reactions given below:
Reaction 1 :
$A (a q .) ⇌ A^{n +} (a q .) + n e^{-}$
$E^{\circ} = 1.88 V$

Reaction 2:
$B (a q .) ⇌ B^{n +} (a q .) + n e^{-}$
$E^{\circ} = - 2.88 V$
Which of the following options is correct?

Reactant A has the tendency to get oxidised

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Reactant B has the tendency to get reduced

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Reactant A has the tendency to get reduced

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Both (a) and (b)

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Solution

The correct option is D Both (a) and (b)
For Reaction 1 :
$A (a q .) ⇌ A^{n +} (a q .) + n e^{-}$
$E^{\circ} = 1.88 V$

Since , $E^{\circ} > 0$ , the forward reaction is spontaneous and hence reactant A has the tendency to oxidise.

For reaction 2:
$B (a q .) ⇌ B^{n +} (a q .) + n e^{-}$
$E^{\circ} = - 2.88 V$
Since , $E^{\circ} < 0$ , the forward reaction is non-spontaneous.
Here backward reaction is spontaneous and hence reactant B has the tendency to reduce.

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Similar questions

Q. Given two reactions and their electrode potential values:
Reaction 1 :

A (a q .) ⇌ A^{n +} (a q .) + n e^{-}

E^{\circ} = + 2 V

Reaction 2:

B (a q .) ⇌ B^{n +} (a q .) + n e^{-}

E^{\circ} = + 4 V

Which of the following options is correct?

Q. Given three reactions:
Reaction 1 :

A (a q .) ⇌ A^{n +} (a q .) + n e^{-}

E^{\circ} = + 2 V

Reaction 2:

B (a q .) ⇌ B^{n +} (a q .) + n e^{-}

E^{\circ} = - 3 V

Reaction 3:

C^{n +} (a q .) + n e^{-} ⇌ C (a q .)

E^{\circ} = + 4 V

The correct decreasing order of the tendency of the species A, B and C to get oxidised is:

Q. For a given electrochemical cell:

Given that:

A (s) ⇌ A^{n +} (a q) + n e^{-}

E^{\circ} = - 1.5 V

B (s) ⇌ B^{n +} (a q) + n e^{-}

E^{\circ} = - 3.1 V

Choose the correct statement.

Q. The values of

E^{0}

of some of the reactions are given below:

I_{2} (g) + 2 e^{-} \to 2 I^{-} (a q); E^{0} = + 0.54 V

C l_{2} (g) + 2 e^{-} \to 2 C l^{-} (a q); E^{0} = + 1.36 V

F e^{3 +} (a q) + e^{-} \to F e^{2 +} (a q); E^{0} = + 0.76 V

C e^{4 +} (a q) + e^{-} \to C e^{3 +} (a q); E^{0} = + 1.60 V

S n^{4 +} (a q) + 2 e^{-} \to S n^{2 +} (a q); E^{0} = + 0.15 V

Which of the following statement is/are true?

Q. The standard reduction potentials at 298 K for the following half reactions are given,

Z n_{(a q)}^{2 +} + 2 e^{-} ⇌ Z n_{(s)}

E^{\circ}

- 0.762 V

C r_{(a q)}^{3 +} + 3 e^{-} ⇌ C r_{(s)}

E^{\circ}

- 0.740 V

2 H_{(a q)}^{+} + 2 e^{-} ⇌ H_{2 (g)}

E^{\circ}

0.000 V

F e_{(a q)}^{3 +} + e^{-} ⇌ F e_{(s)}^{2 +}

E^{\circ}

0.770 V

Which is the strongest reducing agent?

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Consider two reactions given below: Reaction 1 : A (aq.)⇌An+ (aq.)+ne− E∘=1.88 V Reaction 2: B (aq.)⇌Bn+ (aq.)+ne− E∘=−2.88 V Which of the following options is correct?

Consider two reactions given below:
Reaction 1 :
$A (a q .) ⇌ A^{n +} (a q .) + n e^{-}$
$E^{\circ} = 1.88 V$

Reaction 2:
$B (a q .) ⇌ B^{n +} (a q .) + n e^{-}$
$E^{\circ} = - 2.88 V$
Which of the following options is correct?