Subject - Chemistry:

Basics

MCQ - 631-2817

Question:

Which is not a Lewis acid?

AlCl3
BF3
NH3
BF3

Correct Answer: C

Explanation:

Sol. The Lewis acids are lone pair acceptors. The Lewis bases are lone pair donors. Nitrogen in NH3 has 5 electrons in which 3 of them are involved in bonding. That leaves one lone pair. This lone pair is available for bonding. Therefore, NH_3 is a Lewis base.

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645 MCQ for effective preparation of the test of Basics of Chemistry section.

Read the MCQ statement: Which is not a Lewis acid? , keenly and apply the method you have learn through the video lessons for Basics to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 631-2817.

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