Consider the following changes :
`M_((s)) toM_((g)) " " ……..(1)`
`M_((s)) +M_((g))^(2+) +2e^("ϴ")" "……..(2)`
`M_((g)) to M_((g))^(+) +e^("ϴ") " "………(3)`
`M_((g))^(+) to M_((g))^(+2) +e^("ϴ") " ".........(4)`
`M_((g)) to M_((g))^(2+) +2e^("ϴ")" ".........(5)`
The second ionization energy of `M_((g))` could be calculated from the energy values associated with :

Options

A. `1+3+4`
B. `2-1+3`
C. `1+5-3`
D. `5-3`

Answer

D

Explanation

`M_((g)) underset(IE_(1)) overset(e^(-)) to M_((g))^(+) underset(IE_(II)) overset(e^(-))to M_((g))^(+2)`
`M_((g)) to M_((g))^(+2) +2e^(-)`
`M_((g)) to M_((g))^(+) +e^(-)`
--------------------------------------
`" "to M_((g))^(+2) - M_((g))^(+) +e^(-)`
or `M^(+) to M^(+2) +e^(-)`