Which of the following compounds is an example of a Lewis acid?

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Question: Which of the following compounds is an example of a Lewis acid?

Options:

Correct Answer: BF3

Solution:

BF3 is a Lewis acid because it can accept an electron pair due to its incomplete octet.

Which of the following compounds is an example of a Lewis acid?

Which of the following compounds is an example of a Lewis acid?

Step 1: Understand what a Lewis acid is. A Lewis acid is a substance that can accept an electron pair from another substance.
Step 2: Look at the compound BF3 (Boron Trifluoride).
Step 3: Check the electron configuration of Boron in BF3. Boron has only 3 electrons in its outer shell, which means it has an incomplete octet.
Step 4: Since BF3 has an incomplete octet, it can accept an electron pair from another molecule.
Step 5: Conclude that BF3 is a Lewis acid because it can accept an electron pair.

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