JEE Main 2026 Chemistry question
A 'p'-block element (E) and hydrogen form a binary cation , while on treatment with in alkaline medium gives a precipitate of basic mercury(II)amido-iodine. Given below are first ionisation enthalpy values (kJ mol) for first element each from group 13, 14, 15 and 16. Identify the correct first ionisation enthalpy value for element E.
Answer: (3)
Solution
Element E is N, and is the species. Among B, C, N and O, N has the highest first ionization energy (1402 kJ/mol).