Problem: How many sigma (σ) and pi (π) bonds are in a molecule of acetone, (CH3)2CO?a) 9 σ, 2 πb) 8 σ, 1 πc) 8 σ, 2 πd) 9 σ, 1 πe) 10 σ, 0 π

FREE Expert Solution

We’re being asked to determine the number of σ and π bonds in (CH3)2CO


Carbon is the internal atom

  • H → can not be a central atom
  • O → less electronegative than C


          Group            Valence Electrons

C         4A                   3 × 4 e12 e

O          6A                   1 × 6 e6 e

H         1A                   6 × 1 e6 e

         Total:  24 valence e

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Problem Details

How many sigma (σ) and pi (π) bonds are in a molecule of acetone, (CH3)2CO?

a) 9 σ, 2 π

b) 8 σ, 1 π

c) 8 σ, 2 π

d) 9 σ, 1 π

e) 10 σ, 0 π

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Orbital Overlap concept. If you need more Orbital Overlap practice, you can also practice Orbital Overlap practice problems.