Chemistry · 2026
JEE Main · 24 January 2026, Shift 2 · Q58
The correct order of C, N, O and F in terms of second ionisation potential is
The correct order of $\displaystyle \mathrm{C}, \mathrm{N}, \mathrm{O}$ and F in terms of second ionisation potential is
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle \mathrm{C}<\mathrm{N}<\mathrm{F}<\mathrm{O}$
All Classification of Elements and Periodicity questionsPractice Classification of Elements and Periodicity →
More from Classification of Elements and Periodicity
- The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is:2026
- In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element,…2026
- First and second ionization enthalpies of lithium are 520 kJ mol^-1 and 7297 kJ mol^-1 respectively. Energy required to convert 3.5 mg lithium (g)…2026
- Given below are two statements: Statement (I): The first ionisation enthalpy of the elements Na, Mg, Cl and Ar follows the order Na>Mg>Cl>Ar.…2026
- The 1^st ionization enthalpy for Mg is +737 kJ / mol. The most probable estimated value of the 2^nd ionization enthalpy of Mg is ____.2026
- Match List - I with List - II. Choose the correct answer from the options given below:2026
- A monoatomic anion ( A^- ) has 45 neutrons and 36 electrons. Atomic mass, group in the periodic table and physical state at room temperature of the…2026
- Given below are two statements: Statement I: The correct order of electronegativity of fluorine, oxygen and nitrogen is F>O>N. Statement II: The…2026
JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.