Advertisements
Advertisements
Question
Identify the α-carbon in the following species and give the total number of α-hydrogens.
\[\ce{CH2 = CH - CH2 - CH3}\]
Advertisements
Solution
\[\ce{\overset{1}{C}H2 = \overset{2}{C}H - \overset{3}{\underset{\alpha}{C}}H2 - \overset{4}{C}H3}\]
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
RELATED QUESTIONS
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.
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 geometry of a carbocation is ______.
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 compound is highly reactive towards HCN?
Which among the following is a set of nucleophiles?
Identify the reagent used in the following reaction:
\[\ce{CH3 - CH2 - Br ->[?] CH3 - CH2 - OH}\]
The best reagent for the following conversion is:
The +I inductive effect is shown by which of the following groups?
Which of the following shows positive resonance (+R) effect?
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?
How many tertiary carbon atoms and primary carbon atoms respectively are present in 2-iodo-3, 3- dimethyl pentane?
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?
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 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.
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 - 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-hydrogen in each.
\[\ce{CH2 = CH - CH2 - CH3}\]
