☰
✕

Redox Reactions
Question
Wired Faculty App

Depict the galvanic cell in which the reaction Zn(s) + 2Ag+ (aq) → Zn2+(aq) +2Ag(s)
takes place, Further show:
(i) which of the electrode is negatively charged,
(ii) the carriers of the current in the cell, and
(iii) individual reaction at each electrode.

Answer

The galvanic cell will be

Zn (s),Zn2+ (aq)// Ag+ (aq), Ag (s)

i)The Zn electrode will be negatively charged.

ii) Current will flow from silver electrode to zinc electrode.

Electrons flow from Zn to Cu outside ions carry current in the cell.

iii) Individual reaction at each electrode will be

At anode: Oxidation half reaction

Zn(s) -> Zn2+ +2e-

At cathode: Reduction half reaction

2Ag+ (Aq) +2e- -> 2Ag(s)

Sponsor Area

Some More Questions From Redox Reactions Chapter

What is an oxidising agent (electronic concept)?

Can oxidation occur without reduction?

What are redox reactions?

What are direct redox reactions? Give one example.

What are indirect redox reactions?

Write formulas for the following compounds:
(a) Mercury (II) chloride
(b) Nickel (II) sulphate
(c) Tin (IV) oxide
(d) Thallium (I) sulphate
(e) Iron (III) sulphate
(f) Chromium (III) oxide

What are electrolytes?

What are cations and anions?