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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Find out the most stable species from the following. Justify CH.,CH3-CH.-CH3,

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प्रश्न

Find out the most stable species from the following. Justify 

`dot"CH","CH"_3-dot"CH" - "CH"_3,` \[\begin{array}{cc}\ce{CH3 -\dot{C} - CH3}\\
|\phantom{.}\\\phantom{..}\ce{CH3}\end{array}\]

औचित्य
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उत्तर

The most stable species from the given species is `("H"_3"C")_3dot"C"` i.e., tert-butyl radical.
This is because it has a greater number of alkyl groups attached to the C-atom having an unpaired electron. More the number of the alkyl groups, the greater will be +I inductive (electron releasing) effect, and there by greater will be the stability of the free radical.

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Theoretical Basis of Organic Reactions
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 14: Basic Principles of Organic Chemistry - Exercises [पृष्ठ २३०]

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बालभारती Chemistry [English] Standard 11 Maharashtra State Board
पाठ 14 Basic Principles of Organic Chemistry
Exercises | Q 1. G. a. | पृष्ठ २३०

संबंधित प्रश्‍न

Find out the most stable species from the following. Justify.

`bar"C""H"_3, bar"C""H"_2"Br", bar"C""Br"_3`


Identify the α-carbons in the following species and give the total number of α-hydrogen.

\[\ce{CH_3 - CH_2 - \overset{⊕}{C}H-CH_2 - CH_3}\]


Identify the α - carbons in the following species and give the total number of α-hydrogen.


Draw a resonance structure of the following:

Acetate ion


Distinguish between Electrophile and nucleophile.


Distinguish between Homolysis and heterolysis.


Write true or false. Correct the false statement.

Free radicals are negatively charged species.


Draw all the no-bond resonance structures of isopropyl carbocation.


Choose the correct option.

Hyperconjugation involves overlap of ______ orbitals.


The correct IUPAC name of the compound is ______.


Choose the correct option.

The homologous series of alcohols has general molecular formula ______.


Predict the order of reactivity of the following compounds by SNl reaction mechanism.

\[\ce{\underset{\text{(I)}}{C6H5CH(C6H5)Cl}}\]

\[\ce{\underset{\text{(II)}}{C6H5CH2Cl}}\]

\[\ce{\underset{\text{(III)}}{C6H5C(CH3)(C6H5)Cl}}\]


Which of the following compound is highly reactive towards HCN?


Which of the following is the strongest nucleophile?


The best reagent for the following conversion is:


Which of the following alkyl groups shows least positive inductive effect?


How many tertiary carbon atoms and primary carbon atoms respectively are present in 2-iodo-3, 3- dimethyl pentane?


Which of the following represents a set of nucleophiles?


Arrange the following free radicals in order of decreasing stability.

  1. Methyl
  2. Vinyl
  3. Allyl
  4. Benzyl

Identify the α-carbons in the following species and give the total number of α-hydrogen.

\[\ce{CH3 - CH2 - \overset{⊕}{C}H - CH2 - CH3}\] 


Identify the α - carbons in the following species and give the total number of α-hydrogen.

\[\ce{CH3 - CH2 - \overset{⊕}{C}H - CH2 - CH3}\]


Identify the α-carbons in the following species and give the total number of α-hydrogen.

\[\ce{CH2 = CH - CH2 - CH3}\]


Identify the α - carbons in the following species and give the total number of α-hydrogen.

\[\ce{CH3 - CH2 - \overset{⊕}{C}H - CH2 - CH3}\]


Identify the α-carbons in the following species and give the total number of α-hydrogen.

CH2 = CH - CH2 - CH3


Identify the α - carbons in the following species and give the total number of α-hydrogen in each.

\[\ce{CH3 - CH2 - \overset{\oplus}{C}H - CH2 - CH3}\]


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