Each carbocation in below figure should be labelled as 3 o allylic carbocation. Concept introduction: Organic compounds are covalent in nature that undergoes a reaction by heterolytic cleavage or homolytic cleavage. In heterolytic cleavage, shared pair of electrons is taken away by one of the atoms which result in charged species. In homolytic cleavage, shared pair of electrons are equally distributed between two atom that results in free radicals. Carbocation is a general term employed for a postively charged carbon irrespective of valency of carbon. In carbocation, carbon is bonded to 3 atoms or groups and has only sextet of electrons so it behaves as an electron-deficient species. It is s p 2 hybridized with a vacant p orbital and has a planar geometry.

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7. (Chapters 6 and 8) Within the following set, which is more stable, and why? CH3 CH3 H3C- -C=CH- CH2 H2C=Ć- -CH CH3 8. (Chapter 12) What type of instability will an intermediate need to address following the reaction of a nucleophile/base that has a negative charge with a pi bond that has uneven electron distribution between atoms with different electronegativities (C=O)? 9. (Chapter 9) Circle the carbon that will be unstable in the intermediate of the following reaction. Then, state the reason for your choice, and also indicate what type of instability it will be. H,C-CH,- C ECH with NaNH2 10. (Chapters 12 and 13) What are three sources used to provide electrons to an electron-deficient carbon with a leaving group? 1. 2. 3.

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Chapter 8, Problem 8CTQ

Interpretation Introduction

Interpretation: Each carbocation in below figure should be labelled as 3o allylic carbocation.

Concept introduction: Organic compounds are covalent in nature that undergoes a reaction by heterolytic cleavage or homolytic cleavage.

In heterolytic cleavage, shared pair of electrons is taken away by one of the atoms which result in charged species. In homolytic cleavage, shared pair of electrons are equally distributed between two atom that results in free radicals.

Carbocation is a general term employed for a postively charged carbon irrespective of valency of carbon. In carbocation, carbon is bonded to 3 atoms or groups and has only sextet of electrons so it behaves as an electron-deficient species. It is sp2 hybridized with a vacant p orbital and has a planar geometry.

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7. (Chapters 6 and 8) Within the following set, which is more stable, and why? CH3 CH3 H3C- -C=CH- CH2 H2C=Ć- -CH CH3 8. (Chapter 12) What type of instability will an intermediate need to address following the reaction of a nucleophile/base that has a negative charge with a pi bond that has uneven electron distribution between atoms with different electronegativities (C=O)? 9. (Chapter 9) Circle the carbon that will be unstable in the intermediate of the following reaction. Then, state the reason for your choice, and also indicate what type of instability it will be. H,C-CH,- C ECH with NaNH2 10. (Chapters 12 and 13) What are three sources used to provide electrons to an electron-deficient carbon with a leaving group? 1. 2. 3.

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