Advertisements
Advertisements
Question
What is meant by homologous series?
Advertisements
Solution
A series of compounds of the same family in which each member has the same type of carbon skeleton and functional group and differs from the next member by a constant difference of one methylene group \[\ce{(-CH2-)}\] in its molecular and structural formula is called a homologous series.
APPEARS IN
RELATED QUESTIONS
Draw a formula for the first five members of the homologous series beginning with the given compound.
H–COOH
Draw a formula for the first five members of the homologous series beginning with the given compound.
CH3COCH3
Identify the functional group in the following compound.
Identify the functional group in the following compound.
Find out all the functional groups present in the following polyfunctional compound.
Penicillin G, a naturally occurring antibiotic.
Identify primary, secondary, tertiary and quaternary carbon in the following compound.
Structure of the compound whose IUPAC name is 5, 6 – dimethylhept - 2 - ene is
How many cyclic and acyclic isomers are possible for the molecular formula C3H6O?
Give the general characteristics of organic compounds.
Write the molecular formula of the first six members of homologous series of nitro – alkanes.
Identify the pair of organic compounds which belongs to homologous series.
An organic compound containing carbon, hydrogen and oxygen is soluble in dil. H2SO4 and does not react with sodium metal or KMnO4. When it is heated with HI in excess, a single alkyl halide is obtained. The original compound can be ____________.
Which of the following is a hetero-aromatic benzenoid compound?
Identify the number of carbon atoms and number of oxygen atoms respectively present in pyran molecule.
A and B are:
A pyranose ring consists of a skeleton of ______.
Identify primary, secondary, tertiary and quaternary carbon in the following compounds.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
\phantom{}|\phantom{....}|\phantom{...............}\\
\phantom{}\ce{CH3}\phantom{.}\ce{CH3}\phantom{.............}
\end{array}\]
Identify the α - carbons in the following species and give the total number of
\[\ce{CH3 -CH2 -\overset{⊕}{C}H -CH2 -CH3}\]
Identify primary, secondary, tertiary, and quaternary carbons in the following compound.
\[\begin{array}{cc}
\ce{CH3\phantom{.................}}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{....}|\phantom{................}\\
\ce{CH3 CH3\phantom{.............}}
\end{array}\]
Identify primary, secondary, tertiary and quaternary carbon in the following compound.
\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{....}|\phantom{................}\\
\ce{CH3}\ce{CH3}\phantom{..............}
\end{array}\]
Identify primary, secondary, tertiary and quaternary carbon in the following compound.
\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{....}|\phantom{................}\\
\ce{CH3}\ce{CH3}\phantom{..............}
\end{array}
Identify the α - carbons in the following species and give the total number of α-hydrogen in each.
\[\ce{CH3 - CH2 - \overset{\oplus}{C}H - CH2 - CH3}\]
Indicate the σ and π bonds in the following molecule:
\[\ce{HCONHCH3}\]
Identify the α-carbons in the following species and give the total number of α-hydrogen.
\[\ce{CH2 = CH - CH2 - CH3}\]
Identify primary, secondary, tertiary and quaternary carbon in the following compound:
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{....}|\phantom{................}\\
\ce{CH3}\phantom{.}\ce{CH3}\phantom{..............}\\
\end{array}\]
Identify primary, secondary, tertiary and quaternary carbon in the following compound.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{.....}|\phantom{................}\\
\ce{CH3}\phantom{.}\ce{CH3}\phantom{..............}
\end{array}\]
