Advertisements
Advertisements
प्रश्न
The molecular formula of an organic compound is C18H36. Name its homologous series.
Advertisements
उत्तर
The organic compound C18H36 is a member of the homologous series of alkenes having the general formula CnH2n.
APPEARS IN
संबंधित प्रश्न
What is a homologous series?
What is meant by homologous series of carbon compounds?
Write the molecular formula of first two members of homologous series having functional group -Cl.
What is the next higher homologue of methanol (CH3OH)?
Give the molecular formula of one homologue of each of the following:
C2H6
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
Give the names and the structural formula of the first three members of the homologous series of alkanes.
Give three points to differentiate between saturated and unsaturated
hydrocarbons.
The phenomenon in which compounds having different structural formulae have the same molecular formula is called _______.
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.
Find the odd one out and give its explanation.
As one ascends in any homologous series, physical properties change gradually.
There are different general molecular formula for all members of the homologous series.
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 |
Observe the structural formula and answer the following questions.
- Write the name of the given hydrocarbon.
- The given hydrocarbon is included in which type of hydrocarbon?
- What is the kind of compounds with the above characteristic structure called?
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 ______.
Name and draw the electron dot structure of first homologue of alkynes series.
