The second ionisation potential of an element M is the energy required to

Options

A. Remove one mole of electron from one mole of gaseous anion
B. Remove one mole of electron from one mole of gaseous cation of the element
C. Remove one mole of electron from one mole of monovalent gaseous cation of the element
D. Remove 2 moles of electrons from one mole of gaseous atoms

Answer

C

Explanation

`M(g) to M^(+) (g) + e^(-) + I.E_1`
`M^(o+) (g) to M^(2+) (g) + e^(-) + I.E_2`
Hence second ionization energy is the amount of energy required to remove one more `e^(-)` from one mole of monovalent gaseous ions (cation).