Advertisements
Advertisements
Question
Find out the most stable species from the following. Justify.
`bar"C""H"_3, bar"C""H"_2"Br", bar"C""Br"_3`
Advertisements
Solution
The most stable species from the given species is \[\ce{CBr^-_3}\].
This is because it contains 3 -Br atoms, which exhibits electron-withdrawing inductive effect. Carbanions are stabilized by - I inductive (electron-withdrawing) effect. The larger the number of –I groups attached to the negatively charged carbon atom, lower will be the electron density on the carbon atom and the higher will be its stability.
APPEARS IN
RELATED QUESTIONS
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:
Benzaldehyde
Draw a resonance structure of the following:
Buta-1,3-diene
Draw a resonance structure of the following:
Acetate ion
Distinguish between Electrophile and nucleophile.
Write true or false. Correct the false statement.
Homolytic fission involves the unsymmetrical breaking of a covalent bond.
Write true or false. Correct the false statement.
Heterolytic fission results in the formation of free radicals.
Choose the correct option.
Which of the following statements are true with respect to electronic displacement in a covalent bond?
a. Inductive effect operates through π bond
b. Resonance effect operates through σ bond
c. Inductive effect operates through σ bond
d. Resonance effect operates through π bond
The correct IUPAC name of the compound 
is ______.
Choose the correct option.
The homologous series of alcohols has general molecular formula ______.
Which of the following is NOT an electrophile?
Which of the following statements is INCORRECT about hyperconjugation?
The +I inductive effect is shown by which of the following groups?
The most unstable free radical among the following is:
The overlap of σ-p orbitals is called ____________.
Which of the following is the most unstable carbocation?
IUPAC name of 
is ______.
Resonance is NOT exhibited by ____________.
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.
\[\ce{CH2 = CH - CH2 - CH3}\]
Identify the α - carbons in the following species and give the total number of α-hydrogen in each.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H -CH2 - CH2 }\]
Identify the α - carbons in the following species and give the total number of α-hydrogen in each.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H - CH2 - CH3}\]
Identify the α - carbon in the following species and give the total number of α-hydrogen.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H -CH2 - CH3}\]
