Electrochemistry

The reduction potential Zn is_________________? A. 0.76B. -0.76 C. -0.55 D. 0.55

In K2Cr2O7 the oxidation number of chromium is____________________? A. 7B. 6 C. -7 D. -6

Apparent charge on atom in molecule is___________________? A. valency B. coordination numberC. oxidation number D. charge number

In alkaline battery the anode is made up of______________________? A. MnO2B. Zn C. AgO2 D. cadmium

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_____________________? A. rechargeable B. non rechargeable C. electrolytic cell D. Daniel cell

Greater value of standard reduction potential greater will be tendency__________________? A. to get oxidized B. to get reduced C. to accept electronsD. both B and C

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__________________? A. oxidation B. reduction C. oxidation-reductionD. depends on the nature of the coupled electrode

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