JEE Main Chemistry question

The cation-anion bond has the largest amount of covalent character for:

(A)NaBr
(B)SrS
(C)CdSCorrect
(D)BaO

Answer: (C)

Solution

By Fajans' rules, covalent character is favoured by a small, highly polarising cation together with a large, easily polarisable anion. is a small, pseudo-noble-gas (18-electron) cation with high polarising power, and is a large,

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Question ID VK-141669