AIIMS 2014 Chemistry Chemical bonding MCQ Question
Assertion Boron always forms covalent bond. Reason The small size of B3+ favours formation of covalent bond.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
Both Assertion and Reason are true and Reason is not the correct explanation of Assertion
Assertion is true but Reason is false
Both Assertion and Reason are false
Correct Answer
Detailed Explanation
The assertion that boron always forms covalent bonds is true, as boron typically forms stable covalent compounds due to its three valence electrons. However, the reason provided is false; while B³⁺ has a small size that can favor covalent bonding, boron primarily forms covalent bonds due to its ability to share electrons, not solely because of the ionic form B³⁺. Thus, the correct answer is that the assertion is true, but the reason is false.
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