A. Chemical energy is converted into electricity
B. Chemical energy is converted into heat
C. Electrical energy is converted into chemical energy
D. Electrical energy is converted into heat
Related Mcqs:
- In Galvanic cell electrons flow from anode to cathode through__________________?
A. external electric circuit
B. salt bridge
C. movement of ions
D. all of the above - 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 - Which is true about Zn-Cu galvanic cell ?
A. Reduction occurs at anode
B. K+ ion transfer from salt bridge to left beaker of ZnSO4
C. Oxidation occurs at cathode
D. Anode is negatively charged - Which has maximum oxidation number ?
A. N
B. Cr
C. S
D. Mn - For the measurement of standard electrode potential Zn is dipped in________________?
A. 1 M ZnO solution
B. 1 M ZnSO4 solution
C. 1.5 M ZnSO4 solution
D. 0.1 M ZnSO4 solution - 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 - Which of the following element act as inert electrode________________?
CCu
B. Ag
C. Pt
D. None - Reaction at anode is called________________?
A. oxidation
B. reduction
C. redox
D. decomposition - Electrode potential of Zn is__________________?
A. oxidation
B. reduction
C. oxidation-reduction
D. depends on the nature of the coupled electrode - Apparent charge on atom in molecule is___________________?
A. valency
B. coordination number
C. oxidation number
D. charge number
