Q.
Consider the galvanic cell reaction,Zn(s)+2Ag+(aq)⟶Zn2+(aq)+2Ag(s)Which of the following statements are correct?
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
Zinc electrode is negatively charged
b
The ions carry current in the cell
c
At anode, Zn⟶Zn2++2e-
d
At cathode, Ag+(aq)+e-⟶Ag(s)
answer is A.
(Unlock A.I Detailed Solution for FREE)
Detailed Solution
The given redox reaction for the galvanic cell isZn(s)+2Ag+(aq)⟶Zn2+(aq)+2Ag(s)At anode Zn is oxidised to Zn2+ions and at cathodeAg+ ions are reduced to Ag metal. Thus, galvanic cell for the above redox reaction may be depicted as ZnZn2+(aq)‖Ag+(aq)Ag(i) Zn electrode is negatively charged because of the oxidation of Zn to Zn2+ions, electrons are accumulated on zinc electrode.(ii) The ions carry current in the cell. Current flows from Ag electrode to Zn electrode, while electrons flow from Zn electrode to Ag electrode.(iii) Individual reaction at each electrode Anode Zn(s)⟶Zn2+(aq)+2e- Cathode Ag+(aq)+e-⟶Ag(s)
Watch 3-min video & get full concept clarity