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प्रश्न
Write the molecular formula of first two members of homologous series having functional group -Cl.
उत्तर
The general formula for the homologous series of functional group −Cl is CnH2n+1Cl.
The two consecutive members of this series are:
a. CH3Cl (Chloromethane)
b. CH3CH2Cl (Chloroethane)
where n is 1 and 2 respectively
The molecular formula for both of them are CH3Cl and C2H5Cl.
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संबंधित प्रश्न
What is meant by homologous series of carbon compounds?
Write the molecular formula of first two members of homologous series having functional group – OH
Write the molecular formula of the third member of the homologous series of carbon compounds with general formula CnHO2n+1OH.
Write names of first four homologous series of alcohols.
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.
Cyclohexane : Cyclic hydrocarbon : : Isobutylene : _______
Complete the following table for the homologous series of alkanes.
| Name | Molecular formula | Condensed structural formula | Number of carbon atom | Number of -CH2- units | Boiling point °C |
| Methane | CH4 | CH4 | 1 | 1 | -162 |
| Ethane | C2H6 | CH3–CH3 | 2 | 2 | -88.5 |
| Propane | C3H8 | CH3–CH2–CH3 | 3 | 3 | -42 |
| Butane | C4H10 | CH3–CH2–CH2–CH3 | ______ | ______ | 0 |
| Pentane | C5H12 | CH3–CH2–CH2–CH2–CH3 | ______ | ______ | 36 |
| Hexane | C6H14 | CH3–CH2–CH2–CH2–CH2–CH3 | ______ | ______ | 69 |
Complete the following chart by using examples given in brackets.
(isobutylene, cyclohexane, propane, cyclohexene, cyclopentane, benzene, propyne, isobutane, propene)
| Straight chain hydrocarbons | Branched chain hydrocarbons | Cyclic hydrocarbons |
C3H8 belongs to the homologous series of ______.
Consider the carbon compounds having following molecular formula:
(i) C3H6 (ii) C3H8 (iii) C4H6 (iv) C6H6 (v) C6H12
- State the number of double covalent bonds present in C3H6.
- Write the formula of first member of the homologous series to which the carbon compound C4H6 belongs.
- Which one of the above compounds forms a ring structure of carbon atoms?
- Identify, which of the above compounds, is a member of alkane series.
