Questions
Least basic among the following is
detailed solution
Correct option is C
Order of atomic sizes of IIIA group elements: B < Ga < Al < In ~ Tl. As atomic size increases,M—OH bond length increases,and hence M—OH bond strength decreases,therefore M—OH bond cleavage energy increases,therefore basic strength increases.Hence B(OH)3 is least basic.Similar Questions
The bond dissociation energy of BF bond in BF3 is 646 kJ mol–1 whereas that of CF in CF4 is 315 kJ mol–1. The correct reason for higher BF bond dissociation energy as compared to that of CF bond is :
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