Q26 of 40 Page 129

Is there any change in the hybridization of B and N atoms as a result of the following reaction?

BF3 + NH3→ F3B.NH3

Boron atom in BF3 is sp2 hybridized. The excited state of boron can be represented by:


While the nitrogen atom in NH3 is sp3 hybridized. The excited state can be shown as:



On completion of this reaction, an adduct F3B.NH3 is formed as the hybridization of Boron changes to sp3, while the hybridization of nitrogen remains intact.


More from this chapter

All 40 →
24

What is meant by hybridisation of atomic orbitals? Describe the shapes of sp, sp2, sp3 hybrid orbitals.

 25

Describe the change in hybridisation (if any) of the Al atom in the following reaction.

 27

Draw diagrams showing the formation of a double bond and a triple bond between carbon atoms in C2H4 and C2H2 molecules.

 28

What is the total number of sigma and pi bonds in the following molecules?

A. C2H2


B. C2H4