`A^(+n)(g)overset(x)rarrA^(+(n+1))(g)+e^(-)`
In above process 'X' is

N_(2)(g)+3H_(2)(g)overset(Fe+Mo)hArr2NH_(3)(g) , Haber's process, Mo is used as:

NaNO_(3)overset(500^(@)C)rarrA+X_((g)) , A+NH_(2)CONH_(2)+H^(+)rarrY_((g))+z_((g))+H_(2)O . What are the gases X, Y and Z ?

A neutral atom (A) is converted to (A) by the following process Aoverset(E_(1))underset(-e^(-1))rarrA^(+)overset(E_(2))underset(e^(-))rarrA^(+2)overset(E_(3))underset(e^(-))rarrA^(3+) The correct order of of E_(1) , E_(2) and E_(3) energies is :-