Chemistry Practice Problems Orbital Overlap Practice Problems Solution: Lidocaine, discovered in 1946 is often used today ...

Solution: Lidocaine, discovered in 1946 is often used today by dentists to cause localized numbing. Its structure is shown below. How many pi and sigma bonds are contained in lidocaine's structure?A. 4 pi, 39 sigmaB. 4 pi, 18 sigmaC. 3 pi, 39 sigmaD. 3 pi, 18 sigmaE. 6 pi, 48 sigma

Problem

Lidocaine, discovered in 1946 is often used today by dentists to cause localized numbing. Its structure is shown below. How many pi and sigma bonds are contained in lidocaine's structure?

A. 4 pi, 39 sigma

B. 4 pi, 18 sigma

C. 3 pi, 39 sigma

D. 3 pi, 18 sigma

E. 6 pi, 48 sigma


Solution

We’re being asked the number of σ and π bonds in Lidocaine. 


Sigma (σ) bonds are the single bonds in molecules. Also, recall that a double bond is composed of 1 σ bond and 1 π bond and a triple bond is composed of 1 σ bond and 2 π bonds


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