COMEDK · Chemistry · 14. Hydrocarbons

Which one of the following statements is correct?

A The Electrophilic addition to an unsymmetrical alkene always occurs through the formation of a more stable Carbanion intermediate.
B Between the two alkenes - (i) \(\left(\mathrm{CH}_3\right)_2-\mathrm{C}=\mathrm{CH}-\mathrm{CH}_3\) and (ii). \(\mathrm{C}_6 \mathrm{H}_5-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_3\), compound (i) will show geometrical isomerism
C Greater the number of alkyl groups attached to the double bonded Carbon atoms, the less stable is the alkene.
D The major product formed when 2-Methylpropene reacts with dilute \(\mathrm{H}_2 \mathrm{SO}_4\) is tert. butyl alcohol.

Verified Solution

Answer & Solution

Correct Answer

(D) The major product formed when 2-Methylpropene reacts with dilute \(\mathrm{H}_2 \mathrm{SO}_4\) is tert. butyl alcohol.

Step-by-step Solution

Detailed explanation

Electrophilic addition to an unsymmetrical alkene proceeds via the formation of a more stable carbocation intermediate, not a carbanion. Thus, the first statement is incorrect. For geometrical isomerism, each carbon atom of the double bond must be attached to two different…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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