CameraIcon

SearchIcon

MyQuestionIcon

1

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

Electrochemical Series

Choose the co...

Question

Choose the correct shorthand notation for standard reduction potential of the given reactions.

$(a) H g_{2}^{2 +} (a q) + 2 e^{-} ⇌ 2 H g (l)$

$(b) F e^{3 +} (a q) + e^{-} ⇌ F e^{2 +} (a q)$

A

a. E_{H g_{2}^{2 +} (a q) / H g_{2} (l)}^{o}

b. E_{F e^{3 +} (a q) / F e (s)}^{\circ}

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

B

a. E_{H g_{2}^{2 +} (a q) / H g (l)}^{o}

b. E_{F e^{2 +} (a q) / F e^{3 +} (a q)}^{\circ}

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

C

a. E_{H g_{2}^{2 +} (a q) / H g (l)}^{o}

b. E_{F e^{3 +} (a q) / F e^{2 +} (a q)}^{\circ}

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

D

a. E_{H g (l) / H g_{2}^{2 +} (a q)}^{o}

b. E_{F e^{2 +} (a q) / F e^{3 +} (a q)}^{\circ}

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

Open in App

Solution

The correct option is C $a. E_{H g_{2}^{2 +} (a q) / H g (l)}^{o}$

$b. E_{F e^{3 +} (a q) / F e^{2 +} (a q)}^{\circ}$
Electrode potential for reduction half reaction is called reduction potential. The corresponding electrode is termed as positive electrode.

Here, $H g_{2}^{2 +}$ and $F e^{3 +}$ gets reduced to $H g$ and $F e^{2 +}$ respectively.

Thus, shorthand notation for standard reduction potential of the given reactions are
$a. E_{H g_{2}^{2 +} (a q) / H g (l)}^{o}$

$b. E_{F e^{3 +} (a q) / F e^{2 +} (a q)}^{\circ}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The standard reduction potentials at

298 K

for the following half-cell reactions are given by

{Z n}^{2 +} (a q) + 2 e^{-} ⇌ Z n (s) - 0.762

{C r}^{3 +} (a q) + 3 e^{-} ⇌ C r (s) - 0.74

2 H^{+} (a q) + 2 e^{-} ⇌ H_{2} (g) + 0.00

{F e}^{3 +} (a q) + e^{-} ⇌ {F e}^{2 +} (a q) + 0.77

Which one of the following is the strongest reducing agent?

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

Z n^{2 +} (a q) + 2 e^{-} ⇌ Z n (s);

- 0.762 V

C r^{3 +} (a q) + 3 e^{-} ⇌ C r (s);

- 0.74 V

2 H^{+} (a q) + 2 e^{-} ⇌ H_{2} (g);

+ 0.00 V

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

+ 0.77 V

Which one of the following is the strongest reducing agent?

Q. Choose the correct shorthand notation for standard oxidation potential of the given half reactions.

(a) C H_{3} C O O^{-} (a q) + 4 H_{2} O (a q) ⇌ 2 H C O_{3}^{-} (a q) + 9 H^{+} (a q) + 8 e^{-}

(b) C (s) + 2 H_{2} O (a q) ⇌ C O_{2} (a q) + 4 H^{+} (a q) + 4 e^{-}

Q. The standard reduction potential at

25^{o}

C for the following half reactions are given against each of them as follows:

Z n^{2 +} (a q) + 2 e^{-} ⇌ Z n (s), - 0.76

C r^{3 +} (a q) + 3 e^{-} ⇌ C r (s), - 0.74

2 H^{+} (a q) + 2 e^{-} ⇌ H_{2} (g), + 0.0

F e^{3 +} (a q) + e^{-} ⇌ F e^{2 +} (a q), 0.77

V
Which is the strongest reducing agent?

Q. The standard reduction potentials at 298K for the following half cell reaction are given below:

Z n^{2 +} (a q) + 2 e^{-} ⇌ Z n (s); E^{o} = - 0.762 V

C r^{3 +} (a q) + 3 e^{-} ⇌ C r (s); E^{o} = + 0.762 V

2 H^{+} (a q) + 2 e^{-} ⇌ H_{2} (g); E^{o} = + 0.00 V

F e^{3 +} (a q) + e^{-} ⇌ F e^{2 +} (a q); E^{o} = + 0.770 V

Based on the above reactions, select the strongest reducing agent?

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Electrochemical Series

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon