Electrochemical series is series of elements arranged in increasing order of their reduction potential. E_(H^(+)|H_(2))=0. The metals abvoe H_(2) have reductioni potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than H_(2). Reduction potentials of metal depends upon (i) sublimation energy (ii) ionization energy and hydration energy of ions. Which of the following cannot displace H_(2) from dil acid?

Electrochemical series is series of elements arranged in increasing or

1.	Electrochemical series is series of elements arranged in increasing order of their reduction potential. E_(H^(+)\|H_(2))=0. The metals abvoe H_(2) have reductioni potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than H_(2). Reduction potentials of metal depends upon (i) sublimation energy (ii) ionization energy and hydration energy of ions. Which of the following cannot displace H_(2) from dil acid?
Answer» Pt Zn Mg Pb ANSWER :A