The following statements about electro chemical series are
i) the metals occupying top positions in the series do not liberate hydrogen with dilute acids
ii) the substances which are stronger reducing agents and stronger oxidising agents are placed below & top respectively
iii) a metal higher in the series will displace the metal from its solution which is lower in the series
iv) various electrodes are arranged in a series in the descending order of their potentials The correct statements are
The correct statements are

Options

A. iv
B. iii
C. all
D. iii & iv

Answer

B