Question

The first ionisation enthalpies of some elements of group 13are given below: Element Ionisation enthalpy (ink) mol-1) B 801 Al 577 Ga 579 In 558 Ga shows an irregular trend in its first ionisation enthalpy due to a) Poor Shielding effect of 3d electrons b) Poor Shielding effect of 4f electrons c) Larger Size of Ga as compared to Al. d) None of the above









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Answer 1

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