A -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 for first element each from group 13, 14, 15 and

Question

A $' p'$ -block element (E) and hydrogen form a binary cation ${({EH}_{x})}^{+}$ , while ${EH}_{3}$ on treatment with $K_{2} {HgI}_{4}$ in alkaline medium gives a precipitate of basic mercury(II) amido-iodine. Given below are first ionisation enthalpy values $(kJ {mol}^{- 1})$ for first element each from group 13, 14, 15 and 16. Identify the correct first ionisation enthalpy value for element E. [2026]

Smart Achievers · Accepted Answer

(1)

Element E is N, the species is ${NH}_{4}^{+}$ , among B, C, N and O, N has highest first ionization energy.

Solution

1 1402

2 1312

3 801

4 1086

Ans.
(1)

Element E is N, the species is ${NH}_{4}^{+}$ , among B, C, N and O, N has highest first ionization energy.

Want Us to Email you About Special Offers & Updates?