The group 14 elements A and B have the first ionisation enthalpy values of 708 and 715 kJ mol–1 respectively. The above values are lowest among their group members. The nature of their ions A2+ and B4

Question

The group 14 elements A and B have the first ionisation enthalpy values of 708 and 715 kJ mol–1 respectively. The above values are lowest among their group members. The nature of their ions A2+ and B4+ respectively is

(A) both oxidising
(B) reducing and oxidising
(C) oxidising and reducing
(D) both reducing

Prashant Kotian · Accepted Answer

Correct answer: B. As per given information of ionisation energy A = Sn & B = Pb A+2 = Sn+2 = Reducing agent B+4 = Pb4+ = Oxidising agent | JEE(Main) 2025 | DATE : 07-04-2025 (SHIFT-1) | PAPER-1 | CHEMISTRY PAGE # 5

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