Questions
Which of the following is not an ionic trihalide?
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By Expert Faculty of Sri Chaitanya
a
AlF3
b
BF3
c
InF3
d
GaF3
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Correct option is B
B always forms covalent compounds by sharing its valency electrons.Reasons : Due to its small size and high sum of first three ionisation energies, does not lose its three valency electrons to form B+3 ion .Therefore,it doesnot form ionic compounds.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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