7.65 The allen molecule (H2C=C=CH2) is linear (the three C atoms iie on a straig

Question

7.65 The allen molecule (H2C=C=CH2) is linear (the three C atoms iie on a straight line). Determine the hybridization of each carbon atom. Draw diagrams to show the formation of sigma bonds and pi bonds in allene. 7.65 What is the hybridization of the central N atom in the azide ion (N3) (The arrangement of atoms is NNN.) 7.66 How many sigma bonds and pi bonds are there in each of the following molecules? 7.67 How many pi bonds and sigma bonds are there in the tetracyanoethylene molecule? 7.68 Tryptophan is one of the 20 amino acids in the human body. Describe the hybridization of the C atoms and t N atoms, and determine the number of sigma and pi bonds in the molecule

Explanation / Answer

A single bond is a sigma bond while a multiple bond is composed of one sigma bond together with pi or other bonds. A double bond has one sigma plus one pi bond, and a triple bond has one sigma plus two pi bonds.

1. has four sigma bonds

2. 5 sigma bonds plus one pi bond (c=c has one sigm an one pi bond)

3. 10 sigma bonds,3 pi bonds

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