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प्रश्न
What is meant by homologous series?
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उत्तर
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.
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संबंधित प्रश्न
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.
H–CH=CH2
Identify the functional group in the following compound.
Find out all the functional groups present in the following polyfunctional compound.
Thyroxine, the principal thyroid hormone.
Identify primary, secondary, tertiary, and quaternary carbon in the following compound.
\[\begin{array}{cc}\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\|\phantom{.....}|\phantom{................}\\
\ce{CH3}\phantom{.}\ce{CH3}\phantom{..............}
\end{array}\]
Describe the classification of organic compounds based on their structure.
Write a note on homologous series.
Write the molecular formula and possible structural formula of the first four members of homologous series of carboxylic acids.
The reagent used to confirm the presence of five hydroxyl groups in glucose is ____________.
Identify the pair of organic compounds which belongs to homologous series.
What is the percentage of carbon in urea?
(Atomic mass C = 12, H = 1, N = 14, O = 16)
Which of the following is a hetero-aromatic benzenoid compound?
Which of the following statements is INCORRECT for the organic compounds which belong to homologous series?
Which of the following is NOT a cyclic compound?
How many 3° carbon atoms are present in 1, 4 dibromo-2-methylpentane?
What is the molecular formula of pyran?
Identify the number of carbon atoms and number of oxygen atoms respectively present in furan molecule.
An organic compound 'X' (molecular formula C6H7O2N) has six carbons in a ring system, two double bonds and also a nitro group as a substituent, 'X' is ______.
A and B are:
A pyranose ring consists of a skeleton of ______.
Identify primary, secondary, tertiary, and quaternary carbon in the following compounds.
\[\begin{array}{cc}
\ce{CH3}\phantom{..................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
\phantom{}|\phantom{....}|\phantom{................}\\
\phantom{.}\ce{CH3\phantom{.}CH3}\phantom{..............}
\end{array}\]
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 carbon in the following compounds.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{....}|\phantom{................}\\
\ce{CH3}\ce{CH3}\phantom{..............}
\end{array}\]
Identify primary, secondary, tertiary, and quaternary 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 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.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\ce{CH3 - C - CH - CH2 - CH2 - CH3}\\
|\phantom{.....}|\phantom{................}\\
\ce{CH3}\phantom{.}\ce{CH3}\phantom{..............}
\end{array}\]
