Chemistry : Organic Chemistry – Some Basic Principles and Techniques

Write resonance structures of CH₂ = CH–CHO, indicate relative stability of the contributing structures.

Give reasons why the following two structures I and II cannot be the major contributors to the real structure of CH₃COOCH₃:

Explain hyperconjugation effect or no-bond resonance.

Explain why alkyl groups act as electron donors when attached to a 

What are carbocations? Discuss the relative stabilities of primary, secondary and tertiary carbocations.

Give two methods for the generation of carbocation. Describe its structure. 

What are carbanions? How are these generated? Discuss the relative stabilities of primary, secondary and tertiary carbanions.

Why carbanions are very negative? Discuss the structure of carbanion.

What are free radicals? How are these formed? Discuss the structure of free radicals.