Question : Is the specie paramagnetic ?
STATE-1 : The atomic number of speicie is `29`.
STATE-2 : The charge on the specie is `+1`.

Options

A. Statements `(1)` alone is sufficient but statement `(2)` is not sufficient
B. Statement `(2)` alone is sufficient but statement `(1)` is not sufficient
C. Both statement together are sufficient but neither statement alone is sufficient
D. Statement `(1) % (2)` together are not sufficient

Answer

C

Explanation

`{:(,Li(g)rarrLi^(+)+e^(-),,,Deltan=520),(,Li^(+) (g)rarrLi^(+2)+e,,,Deltan=aKJ//"mol"),(,Li^(2+)(g)rarrLi^(2+)+e,,,Deltan=bKJ//"mol"):}`
`b=(IE_(2))_(Li^(+))=(IE)_(Li^(2+))=(IE)_(n)xxƶ^(2)=1313xx9`
`b=(IE_(2))_(Li^(+))=11817KJ//"mol"`
`520 + a+ 11817 = 19800`
`(IE_(2))_(Li^(+))=a=7463KJ//"mol" `