Consider the following redox reaction occurring in acidic medium The unknown standard reduction potential is

Question

Consider the following redox reaction occurring in acidic medium <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/00d9e7c1666fe05677606db8616cd7be-.png" /> The unknown standard reduction potential is (A) -1.6 V (B) 1.6 V (C) -1.52 V (D) 1.52 V

Tardigrade Admin · Accepted Answer

The given half reactions are <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/e880e9211a5cba55fc600c3e9d8a0ae4-.png" /> Adding BrO 3-+5 e - +6 H + longrightarrow (1/2) Br 2+3 H 2 O Δ G° =-7.6 F =-5 E ° F E° =(7.6/5)=1.52 V

Q. Consider the following redox reaction occurring in acidic medium

The unknown standard reduction potential is

-1.6 V

1.6 V

-1.52 V

1.52 V

The given half reactions are

Adding $B r O_{3}^{-} + 5 e^{-} + 6 H^{+} ⟶ \frac{1}{2} B r_{2} + 3 H_{2} O$
$Δ G^{\circ} = - 7.6 F = - 5 E^{\circ} F$
$E^{\circ} = \frac{7.6}{5} = 1.52 V$

Q. Consider the following redox reaction occurring in acidic medium The unknown standard reduction potential is