Which of the folllowing statements are wrong about Boron and Silicon?

Both exhibit allotropy

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Similar electronegativity

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Similar ionization enthalpy

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None of these

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Solution

The correct option is D None of these
A diagonal relationship is said to exist between certain pairs of diagonally adjacent elements in the second and third periods of the periodic table. These pairs are lithium and magnesium, beryllium and aluminium, boron and silicon and they exhibit similar properties
Hence, Boron and Silicon exhibit allotrpy, have similar electronegativity and ionization enthalpy.

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