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Anamolous Behaviour of Boron

Which of the ...

Question

Which of the following is/are anomaly(ies) of boron?

A

metallic nature

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B

allotropy

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C

+1 oxidation state

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D

non-metallic nature

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Solution

The correct option is D non-metallic nature
Boron is a non-metal while other group 13 elements are metals. It is due to the high electronegativity and the small atomic radius of boron. Due to the same reason, it doesnot exihibit +1 oxidation state.
Boron can exist as both amorphous and crystalline solid.

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Anamolous Behaviour of Boron

Standard XI Chemistry

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