The first ionization enthalpies of Be, B, N and O follow the order
← JEE Main 2022 · 25 Jul · Shift 2
ChemistrySingle correct+4 / -1Question 66 of 90
JEE Main 2022 · 25 Jul · Shift 2, Chemistry question 66
Answer and worked solution
Official answer: D
Order B < Be < O < N (Be has a full 2s, N a half-filled 2p).
(D)
Topics:Ionisation enthalpy