Advertisements
Advertisements
प्रश्न
Identify the α-carbon in the following species and give the total number of α-hydrogens.
\[\ce{CH2 = CH - CH2 - CH3}\]
उत्तर
\[\ce{\overset{1}{C}H2 = \overset{2}{C}H - \overset{3}{\underset{\alpha}{C}}H2 - \overset{4}{C}H3}\]
The C-3 carbon atom, that is, the C-atom next to \[\ce{(H2C = CH-)}\] is an α-C atom.
Thus, the structure contains 2 α-H atoms.
APPEARS IN
संबंधित प्रश्न
Draw a resonance structure of the following:
Phenol
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.
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
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 is TRUE for homolytic fission?
The best reagent for the following conversion is:
Which of the following alkyl groups shows maximum positive inductive effect?
The most unstable free radical among the following is:
Which of the following alkyl groups shows least positive inductive effect?
Which of the following represents a set of nucleophiles?
How many pi bonds and sigma bonds are present in following molecule?
Which element among the following does form pπ - pπ multiple bonds?
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.
\[\ce{CH3 - CH2 - \overset{⊕}{C}H - CH2 - CH3}\]
Identify the α-carbons in the following species and give the total number of α-hydrogen.
\[\ce{CH2 = CH - CH2 - CH3}\]
Identify the α-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 - carbons in the following species and give the total number of α-hydrogen in each.
\[\ce{CH2 = CH - CH2 - CH3}\]
Identify the α - carbon in the following species and give the total number of α-hydrogen.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H -CH2 - CH3}\]
Identify the α-carbons in the following species and give the total number of α-hydrogens.
\[\ce{CH3 - CH2 - \overset{⊕}{C}H - CH2 - CH3}\]
