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For the following bond cleavages, use cu...

For the following bond cleavages, use curved-arrows to show the electron flow and classify each as homolysis or heterolysis. Identify reactive intermediate produced as free radical, carbocation and carbanion.

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For the following bond cleavages, use curved-arrow to show the electron flow and classify each as homolysis or heterolysis. Identify intermediate products as free radical, carbocation, and carbanion. (a) CH_3O - OCH_3 rarr CH_3 dot O+ dot O CH_3 .

Classify each of the following as homolysis or heterolysis. Identify the reaction intermediates produced , as free radical, carbocation and carbanion.

An organic reaction occurs by using reagents called electrophiles and nucleophiles via the formation of some reactive intermediates called carbocations, carbanions, free radicals, carbenes, nitrenes, radical cations, and radical anions. The most stable carbanion is :

An organic reaction occurs by using reagents called electrophiles and nucleophiles via the formation of some reactive intermediates called carbocations, carbanions, free radicals, carbenes, nitrenes, radical cations, and radical anions. The most stable free radical is :

An organic reaction occurs by using reagents called electrophiles and nucleophiles via the formation of some reactive intermediates called carbocations, carbanions, free radicals, carbenes, nitrenes, radical cations, and radical anions. The most stable carbocation is :

An organic reaction occurs by using reagents called electrophiles and nucleophiles via the formation of some reactive intermediates called carbocations, carbanions, free radicals, carbenes, nitrenes, radical cations, and radical anions. The least stable carbocation is :

An organic reaction occurs by using reagents called electrophiles and nucleophiles via the formation of some reactive intermediates called carbocations, carbanions, free radicals, carbenes, nitrenes, radical cations, and radical anions. Which of the following contains nucleophiles only ?

An organic reaction occurs by using reagents called electrophiles and nucleophiles via the formation of some reactive intermediates called carbocations, carbanions, free radicals, carbenes, nitrenes, radical cations, and radical anions. Which of the following contains electrophiles only ?

Reaction intermdiates are short lived species and are highly reactive. They are formed by heterolytic and homolytic bond fission. There are various types of reaction intermediates in which the most important are carbocation , carbanion and free radical. Carbocation is an organic species in which carbon have positive charge and six electrons in its outermost shell. The stability of carbocation can be increased by positive inductive effect, hyperconjugation and delocalisation. If alpha -atom with respect to carbocation has one or more lone pair of electron then lone pair of electron strongly stabilises the carbocation due to octet completion. Species in which carbon have negative charge is called carbanion. Carbanion carries three bond pairs and one lone pair. The stability of carbanion can be increased by negative inductive effect, negative mesomeric effect and delocalisation. Free radical is a species which have seven electrons in its outermost shell. The stability of free radical can be increased by hyperconjugation and delocalisation. The stability order of following carbocations is

Reaction intermdiates are short lived species and are highly reactive. They are formed by heterolytic and homolytic bond fission. There are various types of reaction intermediates in which the most important are carbocation , carbanion and free radical. Carbocation is an organic species in which carbon have positive charge and six electrons in its outermost shell. The stability of carbocation can be increased by positive inductive effect, hyperconjugation and delocalisation. If alpha -atom with respect to carbocation has one or more lone pair of electron then lone pair of electron strongly stabilises the carbocation due to octet completion. Species in which carbon have negative charge is called carbanion. Carbanion carries three bond pairs and one lone pair. The stability of carbanion can be increased by negative inductive effect, negative mesomeric effect and delocalisation. Free radical is a species which have seven electrons in its outermost shell. The stability of free radical can be increased by hyperconjugation and delocalisation. Which of the following is the most stable carbanion intermediate ?

ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -NCERT TEXT-BOOK EXERCISES (WITH HINTS AND SOLUTIONS )
  1. What is the relationship between the members of following pairs of str...

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  2. What is the relationship between the members of following pairs of str...

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  3. For the following bond cleavages, use curved-arrows to show the electr...

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  4. For the following bond cleavages, use curved-arrows to show the electr...

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  5. For the following bond cleavages, use curved-arrows to show the electr...

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  6. For the following bond cleavages, use curved-arrows to show the electr...

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  7. Explain the terms Inductive and Electromeric effects. Which electron d...

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  8. Explain the terms Inductive and Electromeric effects. Which electron d...

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  9. Give a brief description of the principles of the following techniques...

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  10. Give a brief description of the principles of the following techniques...

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  11. Give a brief description of the principles of the following techniques...

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  12. Describe the method, which can be used to separate two compounds with ...

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  13. What is the difference between distillation, distillation under reduce...

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  14. Discuss the chemistry of Lassaigne’s test.

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  15. Differentiate between the principle of estimation of nitrogen in an or...

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  16. Discuss the principle of estimation of halogens, sulphur and phosphoru...

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  17. Explain the principle of paper chromatography.

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  18. Why is nitric acid added to sodium extract before adding silver nitrat...

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  19. Explain the reason for the fusion of an organic compound with metallic...

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  20. Name a suitable technique of separation of the components from a mixtu...

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