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प्रश्न
Write the molecular formula of first two members of homologous series having functional group – OH
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उत्तर
The general formula for the homologous series of functional group −OH is CnH2n+1OH.
The two consecutive members of this series are:
a. CH3OH(Methanol)
b. CH3CH2OH (Ethanol)
where n is 1 and 2 respectively
The molecular formula for both of them are CH4O and C2H6O.
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संबंधित प्रश्न
Write the molecular formula of first two members of homologous series having functional group −Br.
What is the next higher homologue of methanol (CH3OH)?
What is the difference between two consecutive homologues:
(1) in terms of molecular mass?
(2) in terms of number and kind of atoms per molecule?
Define a homologous series. Give the name and structural formula of one homologue of the following:
CH3OH
The number of carbon atoms present in the molecule of fifth member of the homologous series of alkynes is:
(a) four
(b) five
(c) six
(d) seven
Distinguish between homologous organs and analogous organs. In which category would you place wings of a bird and wings of a bat? Justify your answer giving a suitable reason.
Copy and complete the following table, which relates to the three homologous series of hydrocarbons:
| General formula | CnH2n | CnH2n-2 | CnH2n+2 |
| IUPAC name of the homologus series | |||
| Characteristic bond type | Single bonds | ||
| IUPAC name of the first member of the series | |||
| Type of reaction with chlorine | Addition |
The general formula of Alkane is _________________
The general molecular formula for the homologous series of alkynes is _______.
C3H8 belongs to the homologous series of ______.
