Advertisements
Advertisements
प्रश्न
Distinguish between Inductive effect and resonance effect.
Advertisements
उत्तर
| Inductive effect | Resonance effect | |
| 1. | The presence of a polar covalent bond is required. | The presence of a conjugated π electron system or species having an atom carrying p orbital attached to multiple bonds is required. |
| 2. | The polarity is induced in adjacent carbon-carbon single (covalent) bonds due to the presence of an influencing group (more electronegative atom than carbon). | The polarity is produced in the molecule by the interaction of conjugated π bonds (or that between π bond and p orbital on the adjacent atom). |
| 3. | Depending on the nature of the influencing group it is differentiated as +I effect and -I effect. | Depending on the nature of the influencing group it is differentiated as +R and -R effect. |
| 4. | The direction of the arrow head denotes the direction of the permanent electron displacement. | The delocalisation of π electrons is denoted by using curved arrows. |
APPEARS IN
संबंधित प्रश्न
Find out the most stable species from the following. Justify
`dot"CH","CH"_3-dot"CH" - "CH"_3,` \[\begin{array}{cc}\ce{CH3 -\dot{C} - CH3}\\
|\phantom{.}\\\phantom{..}\ce{CH3}\end{array}\]
Find out the most stable species from the following. Justify.
\[\ce{\overset{+}{C}H3, \overset{+}{C}H2Cl, \overset{+}{C}Cl3}\]
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 Homolysis and heterolysis.
Draw all the no-bond resonance structures of isopropyl carbocation.
Choose the correct option.
Hyperconjugation involves overlap of ______ orbitals.
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?
The best reagent for the following conversion is:
The overlap of σ-p orbitals is called ____________.
Which of the following is the most unstable carbocation?
Which of the following alkyl groups shows least positive inductive effect?
Resonance is NOT exhibited by ____________.
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.
\[\ce{CH2 = CH - CH2 - CH3}\]
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.
\[\ce{CH2 = CH - CH2 - CH3}\]
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.
\[\ce{CH2 = CH - CH2 - CH3}\]
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.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H - CH2 - CH3}\]
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.
\[\ce{CH2 = CH - CH2 - CH3}\]
