Advertisements
Advertisements
प्रश्न
Find out the most stable species from the following. Justify.
\[\ce{\overset{+}{C}H3, \overset{+}{C}H2Cl, \overset{+}{C}Cl3}\]
Advertisements
उत्तर
The most stable species from the given species is `overset(+)("CH"_3)`
This because it does not contain Cl atom, which exhibits an electron-withdrawing inductive effect. Carbocations are destabilized by -I inductive (electron-withdrawing) effect. When more number of –I groups are attached to the positively charged carbon atom, the positive charge on the carbon atom increases further, thus destabilizing the species. Hence, the species with no –I groups will be most stable.
APPEARS IN
संबंधित प्रश्न
Identify the α-carbons in the following species and give the total number of α-hydrogen.
\[\ce{CH_3 - CH_2 - \overset{⊕}{C}H-CH_2 - CH_3}\]
Draw a resonance structure of the following:
Phenol
Draw a resonance structure of the following:
Benzaldehyde
Draw a resonance structure of the following:
Acetate ion
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.
Free radicals are negatively charged species.
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 TRUE for homolytic fission?
Identify the reagent used in the following reaction:
\[\ce{CH3 - CH2 - Br ->[?] CH3 - CH2 - OH}\]
Which of the following shows positive resonance (+R) effect?
The most unstable free radical among the following is:
The overlap of σ-p orbitals is called ____________.
IUPAC name of
is ______.
How many tertiary carbon atoms and primary carbon atoms respectively are present in 2-iodo-3, 3- dimethyl pentane?
Which of the following is NOT an electrophile?
Resonance is NOT exhibited by ____________.
The most probable product in the reaction given below is:

Identify the group that exerts electron withdrawing resonance effect.
Identify the functional group that has an electron-donating inductive effect.
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 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-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.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H - CH2 - CH3}\]
Identify the α - carbon in the following species and give the total number of α-hydrogen.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H -CH2 - CH3}\]
Which of the following groups exhibits a +I effect?
