Exercise

Author:Embibe Experts

Embibe Experts Chemistry Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Electrochemistry from Chemistry Crash Course (Based on Revised Syllabus - 2023). Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

HARD
12th Gujarat Board
IMPORTANT

Among the following cells
I) Leclanche cell
II) Nickel–Cadmium cell
III) Lead storage battery
IV) Mercury cell
Primary cells are-

HARD
12th Gujarat Board
IMPORTANT

When the lead storage battery discharges-

MEDIUM
12th Gujarat Board
IMPORTANT

Which of the following statement is not correct about an inert electrode in a cell?

HARD
12th Gujarat Board
IMPORTANT

The button cell used in watches function as follows
Zn (s) + Ag2O (s) + H2O (l) 2 Ag (s) + Zn2+ (aq) + 2OH- (aq).

The half cell potentials are

Zn 2+ (aq)+2e   Zn(s), E0=0.76V

Ag2O (s) + H2O (l) + 2e-  2Ag (s) + 2 OH- (aq),  E°= 0.34V.

The cell potential will be

HARD
12th Gujarat Board
IMPORTANT

A conductivity cell has been calibrated with a 0.01 M, 1:1 electrolytic solution (specific conductance (κ = 1.25 × 10-3 S cm-1)) in the cell and the measured resistance was 800 Ω at 25°C. The cell constant is,

EASY
12th Gujarat Board
IMPORTANT

Which of the statements about solutions of electrolytes is not correct?

MEDIUM
12th Gujarat Board
IMPORTANT

Which of the following statement is not correct about an inert electrode in a cell?

MEDIUM
12th Gujarat Board
IMPORTANT

While charging the lead storage battery _____.