Reaction Mechanism and Rearrangement

1.      Choose the correct statement.

• Polar aprotic solvents are suitable for E₁ elimination reaction.

• Polar protic solvents solvate only the anions

• Polar aprotic solvents solvate only the cations

• E₂ reactions are favoured by polar protic solvents

The stability of 2-butene is explained by __________________.

• Mesomeric effect

• Baker-Nathan effect

• Inductive effect

• Isomeric effect

Mention the major product obtained for the dehydrobromination of 2-bromobutane in thepresence of alkaline KOH.

• Butane

• 1-Butene

• 2-Butene

• 1-Bromobutane

    Identify the product obtained from the thermal decomposition of hexylamine.

• Hexane

• 1-Hexene

• 2-Hexene

• 1-Pentene

  How many hyperconjugative structures are possible for 2-butene?

• 2

• 4

• 6

• 8

Which of the following is the poor leaving group?

• Cl ̄

• Br ̄

• I ̄

• F ̄

Which elimination reaction is considered as the most common elimination reaction?

• α-elimination

• β-elimination

• γ-elimination

• extrusion reaction

Which stable carbocation is formed as intermediate in E₁ reaction?

• 
• 
• 
• 

Which of the following chemical is used to convert the alkylammonium iodide in to quaternary ammoniumhydroxide?

• Methyl iodide

• Potassium hydroxide

• Silver iodide

• Silver oxide

Ethyl acrylate on heating at 590 ^oC gives ____________.

• Ethanoic acid        

• Acrolein     

• Acrylic acid          

• Ethane