The reduction potential Zn is_________________?
A. 0.76
B. -0.76
C. -0.55
D. 0.55
Electrochemistry
In K2Cr2O7 the oxidation number of chromium is____________________?
In K2Cr2O7 the oxidation number of chromium is____________________?
A. 7
B. 6
C. -7
D. -6
Apparent charge on atom in molecule is___________________?
Apparent charge on atom in molecule is___________________?
A. valency
B. coordination number
C. oxidation number
D. charge number
In alkaline battery the anode is made up of______________________?
In alkaline battery the anode is made up of______________________?
A. MnO2
B. Zn
C. AgO2
D. cadmium
Density of H2SO4 in lead accumulator is__________________?
Density of H2SO4 in lead accumulator is__________________?
A. 1.25g/cm3
B. 1.3g/cm3
C. 1.20g/cm3
D. 1.15g/cm3
Secondary cell is_____________________?
Secondary cell is_____________________?
A. rechargeable
B. non rechargeable
C. electrolytic cell
D. Daniel cell
Greater value of standard reduction potential greater will be tendency__________________?
Greater value of standard reduction potential greater will be tendency__________________?
A. to get oxidized
B. to get reduced
C. to accept electrons
D. both B and C
The element that act as anode always have ______________ position in electrochemical cell?
The element that act as anode always have ______________ position in electrochemical cell?
A. higher
B. lower
C. in middle
D. no effect of position
Electrode potential of Zn is__________________?
Electrode potential of Zn is__________________?
A. oxidation
B. reduction
C. oxidation-reduction
D. depends on the nature of the coupled electrode
Potential of SHE is considered as__________________?
Potential of SHE is considered as__________________?
A. zero
B. unity
C. constant
D. multiple of 1