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Chapter 1: Q-1-41P (page 2)

Which of the bonds in a carbon-oxygen double bond has more effective orbital overlap: the bond σ or the bond π ?

Short Answer

Expert verified

The σ bond in the carbon-oxygen double bond has a more effective orbital overlap.

Step by step solution

01

Definition of sigma and pi bond.

Sigma and pi bonds both are two categories of covalent bonds. Head-to-head overlap of atomic orbitals results in the formation of sigma bonds. While pi bonds are formed as a result of the lateral overlap of an atomic orbital.

02

Finding out the bond that has a more effective orbital overlap.

In the case of a carbon-oxygen double bond, σ has more bond energy that makes it stronger and thus has a more effective overlap compared to π bond.

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Most popular questions from this chapter

Draw the ground-state electronic configuration for each of the following:

a. Mg

b.Ca2+

c. Ar

d. Mg2+

Draw the following orbitals:

a. 3sorbital

b. 4sorbitalc.

c. 3porbital

Indicate the kind of molecular orbital (σ ,σ *,π ,π *) that results when the two atomic orbitals are combined:

a. Draw two Lewis structures for C2H6O.

b. Draw three Lewis structures for C3H8O.

(Hint:The two Lewis structures in part a are constitutional isomers—molecules that have the same atoms but differ in the way the atoms are connected. The three Lewis structures in part b are also

constitutional isomers.)

Calculate the percentages of α-d-glucose and β-d-glucose present at equilibrium from the specific rotations of α-d-glucose, β-d-glucose, and the equilibrium mixture. Compare your values with those given in Section 20.10. (Hint:The specific rotation of the mixture equals the specific rotation of α-d-glucose times the fraction of glucose present in the α-form plus the specific rotation of β-d-glucose times the fraction of glucose present in the β-form.)
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