The Acid-Catalyzed Dimerization of Isobutylene Gives a Mixture of Two

question 5

Multiple Choice

The acid-catalyzed dimerization of isobutylene gives a mixture of two isomeric alkenes,A and B.Hydrogenation of this mixture gives a single C₈H₁₈ hydrocarbon.What is the structure of this hydrocarbon?

• A)2,2,4-Trimethylpentane
• B)2,3,4-Trimethylpentane
• C)2,4-Dimethylhexane
• D)2,5-Dimethyhexane

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Definitions:

Extensor Aponeurosis

A tough, fibrous tissue that connects the extensor muscles in the hand or foot to the bone, helping to extend the digits.

Pronator Quadratus

A square-shaped muscle on the distal forearm that helps in pronating the forearm.

Semimembranosus

One of the three hamstring muscles located at the back of the thigh, important for thigh extension and knee flexion.

Pronator Teres

A muscle in the forearm that helps in pronating the wrist, turning the hand so the palm faces downwards or backwards.