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प्रश्न
Write the molecular formula of first two members of homologous series having functional group −Br.
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उत्तर
The general formula for the homologous series of functional group −Br is CnH2n+1Br.
The two consecutive members of this series are:
a. CH3Br(Bromomethane)
b. CH3CH2Br (Bromoethane)
where n is 1 and 2 respectively
The molecular formula for both of them are CH3Br and C2H5Br.
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संबंधित प्रश्न
State any four characteristics of a homologous series
Give the names and the structural formula of the first three members of the homologous series of alkanes.
Give the names of the first four members of the homologous series of
alkynes.
Write the name and formula of the fourth member of the following homologous series:
Alkyne
The general formula of Alkane is _________________
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.
Complete the following table for homologous series of alcohols.
| Name | Molecular formula | Condensed structural formula | Number of carbon atom | Number of -CH2- units | Boiling point °C |
| Methanol | CH4O | CH3-OH | 1 | 1 | 63 |
| Ethanol | C2H6O | CH3–CH2-OH | 2 | 2 | 78 |
| Propanol | C3H8O | CH3–CH2–CH2-OH | ______ | ______ | 97 |
| Butanol | C4H10O | CH3–CH2–CH2–CH2–OH | ______ | ______ | 118 |
C3H8 belongs to the homologous series of ______.
Define Homologous series.
Write the chemical formula of two consecutive homologous of organic compounds having functional group - OH.
What happens to the (i) boiling point and (ii) solubility of organic compounds of a homologous series as the molecular mass increases?
