Exams › JEE Main › Chemistry

The major product (Y) in the following reactions is: CH3–CH(CH3)–C≡CH (i) HgSO4, H2SO4 (ii) C2H5MgBr, H2O (iii) Conc. H2SO4/Δ

1. CH3–C(CH3)=C(CH3)–C2H5
2. H3C–C(=CH2)–CH(C2H5)–CH3
3. CH3–CH(CH3)–C(C2H5)=CH2
4. CH3–CH(CH3)–C(CH3)=CH–CH3

Correct answer: H3C–C(=CH2)–CH(C2H5)–CH3

Solution

The correct option is the result of the reactions involving the addition of water and subsequent rearrangements, leading to the formation of a double bond in a stable position, which is characteristic of the Markovnikov rule and the stability of the resulting alkene.

Related JEE Main Chemistry questions

• Arrange the following carbanions in decreasing order of basicity: (A) CH3CH2−, (B) CH2=CH−, and (C) HC≡C−.
• In acid-catalyzed hydration of alkenes, all alkenes except ethene generally give rise to which type of alcohol product?
• Which of the following organic compounds has the same hybridization as the carbon atom in its combustion product, CO2?
• In the hydration of propyne, CH3–C≡CH, using H2O in the presence of H2SO4/HgSO4, which intermediate (A) and final product (B) are formed?
• What is formed when CH3MgX reacts with CH3C≡CH?
• Which of the following reagent sets can be used to convert propene into 1-propanol?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →