The bond order of the N-O bonds in `NO_3^-` ion is

The bond order of Cl-O bond on ClO_(3)^- is 'X' .Then "3X" is

The bond order of He^(2+) ion is-

The bond order of He^(2+) ion is-

Explain the following observation: The N-O bond in NO_2^- ion is shorter in length than the N-O bon in NO_3^- ion.

Bond order of N-O bonds in nitrate ion is

Bond order of N-O bonds in nitrate ion is