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प्रश्न
Find out the most stable species from the following. Justify
`dot"CH","CH"_3-dot"CH" - "CH"_3,` \[\begin{array}{cc}\ce{CH3 -\dot{C} - CH3}\\
|\phantom{.}\\\phantom{..}\ce{CH3}\end{array}\]
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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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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`
Find out the most stable species from the following. Justify.
\[\ce{\overset{+}{C}H3, \overset{+}{C}H2Cl, \overset{+}{C}Cl3}\]
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-carbon in the following species and give the total number of α-hydrogens.
\[\ce{CH2 = CH - CH2 - CH3}\]
Draw a resonance structure of the following:
Benzaldehyde
Write true or false. Correct the false statement.
Heterolytic fission results in the formation of free radicals.
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 delocalization of electrons due to overlap between p orbital and sigma bond is called _______.
Which of the following is the strongest nucleophile?
Which among the following is a set of nucleophiles?
Which of the following alkyl groups shows maximum positive inductive effect?
Which of the following alkyl groups shows least positive inductive effect?
How many pi bonds and sigma bonds are present in following molecule?
Which of the following statements is not correct?
Identify the functional group that has an electron-donating inductive effect.
Arrange the following free radicals in order of decreasing stability.
- Methyl
- Vinyl
- Allyl
- 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.
\[\ce{CH2 = CH - CH2 - CH3}\]
Identify the α-carbons in the following species and give the total number of α-hydrogen in it.
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-carbon 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 in each.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H -CH2 - CH2 }\]
Identify the α - carbon in the following species and give the total number of α-hydrogen.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H -CH2 - CH3}\]
Identify the α - carbon 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-hydrogens.
\[\ce{CH3 - CH2 - \overset{⊕}{C}H - CH2 - CH3}\]
Identify the α-carbons in the following species and give the total number of α-hydrogen.
\[\ce{CH2 = CH - CH2 - CH3}\]
