Maximum first ionisation enthalpy among the following is of
(1) N
(2) B
(C) O
(4) C

The first ionization enthalpy of O is lower than that of N.

The first ionisation enthalpy of the elements C,N,P,Si are in the order of

Highest bond order among the following molecules C_(2) , N_(2), O_(2), F_(2) is for

Correct order of 1st ionisationpotential (IP) among following elements Be, B, C, N, O is

Among second period elements, the correct order of first ionisation enthalpy is : 1 Li 2 Li 3 Li > Be > B > C > N > O > F > Ne 4 Li > B > C > Be > O >N > F > Ne

The first ionisation enthalpies (in eV) of N & O are respectively given by: