Which of the following is the correct reason for the anomalous behaviour of Boron?

Smallest size in the group

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Low Ionisation Energy

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None of these

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Low Electronegativity

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Solution

The correct option is D Low Electronegativity
Boron shows anomalous behaviour with the other members of the group because of the smallest size and the group, highest ionization energy, highest electronegativity in the group, absence of vacant d- orbital and the allotropy, while the other members do not show.

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