Chemical used in salt bridge is________________?
A. KOH
B. KCI
C. KNO3
D. KBr
Submitted by :- Jamil Ahmed
mnsoomro
H2 gas in SHE is filled at pressure of___________________?
A. 760mm of Hg
B. 750mm of Hg
C. 780mm of Hg
D. 800mm of Hg
Submitted by :- Jamil Ahmed
Right half cell contains _____________ electrode?
A. Al
B. Zn
C. Cu
D. Fe
Submitted by :- Jamil Ahmed
Decrease in oxidation number is called__________________?
A. oxidation
B. reduction
C. oxidation-reduction
D. all of above represent same entity
Submitted by :- Jamil Ahmed
Reaction at anode is called________________?
A. oxidation
B. reduction
C. redox
D. decomposition
Submitted by :- Jamil Ahmed
In electrolytic solution conductance of electricity is due to _____________________?
The degree of dissociation of week electrolyte increases as________________?
A. Pressure increases
B. Dilution decreases
C. Dilution increases
D. None
Submitted by :- Mansoor Khan
Which of the following is true in the case of Zn-Cu cell ?
A. The flow of electrons takes place from copper to zinc
B. Ered of copper electrode is less than that of zinc electrode
C. Zinc acts as an anode and copper as cathode
D. All are correct
Submitted by :- Jamil Ahmed
Which of the following cell is not rechargeable ?
A. Lead storage battery
B. Silver oxide cell
C. Fuel cell
D. Ni-Cd cell
Submitted by :- Jamil Ahmed
Stronger the oxidizing agent greater is the________________?
A. Oxidation potential
B. Reduction potential
C. Redox potential
D. emf of cell
Submitted by :- Jamil Ahmed