Advertisements
Advertisements
Question
In the alkane H3C–CH2–C(CH3)2–CH2–CH(CH3)2, identify 1°,2°,3° carbon atoms and give the number of H atoms bonded to each one of these.
Solution
\[\begin{array}{cc}
\phantom{...}\ce{H}\phantom{.....}\ce{H}\phantom{...}\ce{^{1°}CH}\phantom{....}\ce{H}\phantom{..}\ce{^{1°}CH3}\phantom{..}\\
|\phantom{......}|\phantom{......}|\phantom{......}|\phantom{......}|\phantom{..}\\
\ce{H - C^{1°} - C^{2°} - C^{4°} - C^{2°} - C^{3°} - H}\\
|\phantom{......}|\phantom{......}|\phantom{......}|\phantom{......}|\phantom{..}\\
\phantom{..}\ce{H}\phantom{....}\ce{H}\phantom{...}\ce{_{1°}CH3}\phantom{....}\ce{H}\phantom{...}\ce{_{1°}CH3}\phantom{}
\end{array}\]
1° carbon atoms are those which are bonded to only one carbon atom, i.e., they have only one carbon atom as their neighbour. The given structure has five 1° carbon atoms and fifteen hydrogen atoms are attached to it.
2° carbon atoms are those which are bonded to two carbon atoms, i.e., they have two carbon atoms as their neighbours. The given structure has two 2° carbon atoms and four hydrogen atoms are attached to it.
3° carbon atoms are those which are bonded to three carbon atoms, i.e., they have three carbon atoms as their neighbours. The given structure has one 3° carbon atom and only one hydrogen atom is attached to it.
APPEARS IN
RELATED QUESTIONS
Write IUPAC name of the following compound:
CH3CH = C(CH3)2
Write structures of all the alkenes which on hydrogenation give 2-methylbutane.
Which among the following is pent-l-ene?
IUPAC names of the products obtained by addition of HBr to hex - 1 - ene in the absence of peroxide and in the presence of peroxide respectively are:
An alkene ‘A’ contains three C – C, eight C – H σ bonds and one C – C π bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of ‘A’.
An alkene ‘A’ contains three C–C, eight C–H σ bonds and one C–C π bond. ‘A’ on ozonolysis gives two moles of an aldehyde of molar mass 44 u. Write IUPAC name of ‘A’.
