Questions
Which of the following is correct for Ga?
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By Expert Faculty of Sri Chaitanya
a
Its size is smaller than that of Al
b
Its ionization enthalpy is very close to that of Al
c
Its m.p. is lowest in the family (only30o C)
d
All of the above
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Correct option is D
Size of Al is =143 pm ; Ga =135 pmIonisation enthalpy of Al =577 KJ/mol and Ga =579 KJ/molMelting point order B >Al >Tl >In >GaGallium exist as liquid state during summerSimilar 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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