731. Decrease in oxidation number is called__________________?
A. oxidation
B. reduction
C. oxidation-reduction
D. all of above represent same entity

732. Right half cell contains _____________ electrode?
A. A1
B. Zn
C. Cu
D. Fe

733. Salt bridge transfers_______________?
A. electrons
B. anion
C. current
D. ions

734. E0red of an element cab be calculated by comparing it with _____________________?
A. New electrode of same element
B. SHE
C. 1M solution of ions of respective element
D. 2M solution of HCI

735. Potential of SHE is considered as__________________?
A. zero
B. unity
C. constant
D. multiple of 1

736. Electrode potential of Zn is__________________?
A. oxidation
B. reduction
C. oxidation-reduction
D. depends on the nature of the coupled electrode

737. The element that act as anode always have ______________ position in electrochemical cell?
A. higher
B. lower
C. in middle
D. no effect of position

738. 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

739. Secondary cell is_____________________?
A. rechargeable
B. non rechargeable
C. electrolytic cell
D. Daniel cell

740. Density of H2SO4 in lead accumulator is__________________?
A. 1.25g/cm3
B. 1.3g/cm3
C. 1.20g/cm3
D. 1.15g/cm3