Subjective Type

Why does boron triflouride behave as a Lewis acid ?

Solution

B atom in $$\displaystyle BF_3$$ has 6 valence electrons. To complete octet, it requires 2 electrons. It readily accepts an electron pair from Lewis bases such as fluoride ion, ethoxide ion and behaves as Lewis acid.

$$\displaystyle BF_3+F^- \rightarrow BF_4^- $$

SIMILAR QUESTIONS

Acids, Bases and Salts

Which one of the following is not a base?

Acids, Bases and Salts

The gaseous phase neutralisation reaction can be explained only on the basis of:

Acids, Bases and Salts

Which one of the following is not a Lewis Acid?

Acids, Bases and Salts

Identify the incorrect statement out of the following :

Acids, Bases and Salts

According to the Lewis acid-base concept:

Acids, Bases and Salts

Which of the following is a Lewis acid?

Acids, Bases and Salts

Which of the following fluoro-compounds is most likely to behave as a Lewis base?

Acids, Bases and Salts

Which of these is least likely to act as a Lewis base?

Acids, Bases and Salts

Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis acid/base: (a) $$\displaystyle { OH }^{ - }$$ (b) $$\displaystyle { F }^{ - }$$ (c) $$\displaystyle { H }^{ + }$$ (d) $$\displaystyle { BCl }_{ 3 }$$.

Acids, Bases and Salts

According to Lewis concept, an acid is a/an:

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