Question:
Identify from following an example of Lewis acid.
Identify from following an example of Lewis acid.
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A Lewis acid accepts an electron pair; boron in BF3 has an incomplete octet.
Updated On: Nov 12, 2026
- \(\text{H}_{2}\text{SO}_{4}\)
- \(\text{HClO}_{4}\)
- \(\text{CH}_{3}\text{COOH}\)
- \(\text{BF}_{3}\)
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
A Lewis acid is a species that accepts a pair of electrons.
Step 2: Check the options
\(\text{BF}_{3}\) has only six electrons around boron, so it accepts a lone pair readily.
\(\text{H}_{2}\text{SO}_{4}\), \(\text{HClO}_{4}\) and \(\text{CH}_{3}\text{COOH}\) act as acids by giving protons (Bronsted acids).
Step 3: Conclusion
\(\text{BF}_{3}\) is the Lewis acid.
Final Answer:
\(\text{BF}_{3}\) is an example of a Lewis acid. \[ \boxed{\text{(D) }\text{BF}_{3}} \]
A Lewis acid is a species that accepts a pair of electrons.
Step 2: Check the options
\(\text{BF}_{3}\) has only six electrons around boron, so it accepts a lone pair readily.
\(\text{H}_{2}\text{SO}_{4}\), \(\text{HClO}_{4}\) and \(\text{CH}_{3}\text{COOH}\) act as acids by giving protons (Bronsted acids).
Step 3: Conclusion
\(\text{BF}_{3}\) is the Lewis acid.
Final Answer:
\(\text{BF}_{3}\) is an example of a Lewis acid. \[ \boxed{\text{(D) }\text{BF}_{3}} \]
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