Answer :
Answer:
Answer is explained in the explanation section below.
Explanation:
This question is requires the diagram, which I have drawn and it is attached in the attachment below. Please for this answer, refer to the diagram attached in the attachment below.
Referring to the diagram, attached. As we know that, Allylic secondary carbocations are more stable than Allylic tertiary carbocations.
Hence,
C2 will have a more positive charge since a tertiary carbocation (C2) is more stable than a secondary carbocation (C4). Therefore, the resonance structure will favor the positive charge at C2.
The resonance structure formed for 2-methyl 1-3 penatdiene are allylic secondary and tertiary carbocation compounds.
What is protonation?
Protonation is the addition of hydrogen or the protons to the carbon in an organic compound. The addition of hydrogen takes place at the carbon that forms the stable compound.
The protonation of 2-methyl-1,3 pentadiene is given in the image attached.
The expected carbocation in the structure with the positive charge is C-2, as it forms a more stable product than C-4 due to less repulsion.
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