STATEMENT-1 : Boron always forms covalent bond. because STATEMENT-2 : The small size of B^ 3+ favours formation of covalent bond.

JEE Advanced 2007 Chemistry question

STATEMENT-1 : Boron always forms covalent bond. because STATEMENT-2 : The small size of favours formation of covalent bond.

(A)Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1Correct
(B)Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1
(C)Statement-1 is True, Statement-2 is False
(D)Statement-1 is False, Statement-2 is True

Answer: (A)

Solution

Statement-1: boron does not form a ion in its compounds; the sum of its first three ionisation energies is very high, and all its compounds are covalent: true. Statement-2: the hypothetical

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Question ID VK-037435