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Maximum number of no bond resonating structures

Thread starter Priyadarshini
Start date Jan 29, 2016
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Bond Maximum Structures

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2 replies · 4K views · last reply Jan 29, 2016

Priyadarshini

Thread starter
Jan 29, 2016

#1

Homework Statement

Handwritten question asking which of four carbocation structures gives the maximum number of no-bond resonating structures, with options 1 to 4 drawn as CH3-CH2(+), H3C-CH(+)-CH3, C2H5-C(+)(CH3)-CH3 and H3C-C(+)(CH3)-CH3.

Homework Equations

number of alpha hydrogens= number of no bond resonating structures

The Attempt at a Solution

option 1: 3
option 2: 6
option 3: 8
option 4: 9

So the answer should be 4, right?

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Discussion

Suraj M

Gold Member

Jan 29, 2016

#2

Did you eliminate the symmetric structures?

Last edited: Jan 29, 2016

Priyadarshini

Jan 29, 2016

#3

Suraj M said:

Did you eliminate the symmetric structures?

Ohhh right. I forgot to eliminate the symmetric structures! Thanks.

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