In an electrolytic cell current flows ?
A. From cathode to anode in outer circuit
B. From anode to cathode outside the cell
C. From cathode to anode inside the cell
D. both B & C
Submitted by :- Jamil Ahmed
Which has maximum oxidation number ?
A. N
B. Cr
C. S
D. Mn
Submitted by :- Jamil Ahmed
Percentage of sulfuric acid in lead accumulator is__________________?
A. 4%
B. 25%
C. 3%
D. 5%
Submitted by :- Jamil Ahmed
Voltaic cell is a_________________?
A. irreversible cell
B. reversible cell
C. alkaline cell
D. all of the above
Submitted by :- Jamil Ahmed
The strength of solution of an element whose electrode potential is to be measured is________________?
A. 2M
B. 1N
C. 1m
D. 1M
Submitted by :- Jamil Ahmed
Capacity of one lead accumulator cell is___________________?
A. 1.5 volts
B. 2 volts
C. 3 volts
D. 1 volts
Submitted by :- Mansoor Khan
Lead accumulators are_______________?
A. secondary cell
B. primary cell
C. voltaic cell
D. both A & C
Submitted by :- Jamil Ahmed
Greater value of standard reduction potential smaller will be tendency______________?
A. to form positive ions
B. to form negative ions
C. gain electrons
D. all are possible
Submitted by :- Mansoor Khan
In galvanic cell Zn acts as an anode so its value of standard reduction potential in comparison to coupled electrode would be________________?
A. greater
B. lesser
C. sum of reduction and oxidation potentials
D. none
Submitted by :- Jamil Ahmed
List of elements based on hydrogen scale is called________________?
A. periodic table
B. groups
C. periods
D. electrochemical series
Submitted by :- Jamil Ahmed