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'Stability of carbocations depends upon ...

'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''.
Write structure of various carbocations that can be obtained from 2-methylbutane. Arrange these carbocations in order of increasing stability

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To solve the problem of determining the stability of carbocations derived from 2-methylbutane, we will follow these steps: ### Step 1: Draw the structure of 2-methylbutane 2-methylbutane has the following structure: ``` CH3 | CH3-CH-CH2-CH3 ...
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'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''. Which of the following ions is more stable ? Use resonance of explain your answer.

'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''. The structure of triphenylmethyl cation is given below. This is very stable and some of its salts can be stored for months. Explain the cause of high stability of this cation

'Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged atom involvement of neighbouring groups in hyperconjugation and resonace''. Draw the possible resonance structures for CH_(3) - underset(..)overset(..)(O) - overset(+)(C) H_(2) and predict which of the structures is more stable. Give reason for your answer.

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. The stability order of following free radicals is: C_(6)H_(5)underset(I)CH_(2)overset(*)CH_(2)" "CH_(3)underset(II)CH_(2)overset(*)CH_(2)" "underset(" "III)(C_(6)H_(5))overset(*)CH_(2)" "underset(IV)(CH_(3)^(*)

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 ?

The most important condition for resonanace to occur is that the invovled atoms in resonating structure must be coplanar or nearly coplanar for maximum delocalisation. If this condition does not fulfil, involved orbitals cannot be parallel to each other and as consequence delocalisation cannot occur. Bulky groups present on adjacent atoms inhibit the planarity of atoms involved in resonance. this pehnomenon is known as steric inhibition of resonance. Steric inhibition of resonance has profound effect on Q. Arrange the following in the decreasing order of basicity: .

Assertion: - 3^@ carbocations are more stable than 1^@ and 2^@ carbocations. Reason :- The+I effect of alkyl groups decreases the magnitude of positive charge to the maximum possible extent in a 3^@ carbocation

Phenols are more acidic than aliphatic alcohols acidity of phenols can be further increased by the introduction of electron withdrawing groups in aromatic ring .Acidic nature of phenol is because of the resonance stabilization of phenoxide ion Arrange the given phanols in the increasing order of acidic strength

(A) Tertiary carbocations are generally formed more easily than primary carbocations. (R) Hyperconjugation as well as inductive effect due to additional alkyl groups stabilize tertiary cabocations.

NCERT EXEMPLAR ENGLISH-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES-Short Answer type question
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  2. Compounds with same molecular formula but differing in their structure...

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  3. Which of the following selected chains is correct to name to given com...

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  4. In DNA and RNA, nitrogen atom is present in the ring system. Can Kjeld...

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  5. If a liquid compound decomposes at its boiling point, which method (s)...

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  6. 'Stability of carbocations depends upon the electron releasing inducti...

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  7. 'Stability of carbocations depends upon the electron releasing inducti...

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  8. 'Stability of carbocations depends upon the electron releasing inducti...

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  9. 'Stability of carbocations depends upon the electron releasing inducti...

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  10. Three students, Manish, Ramesh and Rajini were determining the extra e...

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  11. Name the compounds whose line formula are given below.

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  12. Write structural formulae for compounds named as (a) 1-bromoheptane ...

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  13. Draw the resonance structures of the following compounds. (a) CH(2) ...

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  14. Identify the most stable species in the following set of ions giving r...

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  15. Given three points of differences between inductive effect and resonan...

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  16. Which of the following compounds will not exist as resonance hybrid. G...

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  17. Why does SO(3) act as an electrophile ?

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  18. Resonance structures of propenal are given below. Which of these reson...

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  19. By mistake, an alcohol(boiling point 97^(@)C) was mixed with a hydroca...

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  20. Which of the two structures (A) and (B) given below is more stabilised...

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