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प्रश्न
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by _______.
पर्याय
14 u
15 u
16 u
17 u
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उत्तर
While going in an increasing order there is a rise in the molecular mass of the consecutive members of the homologous series by 14 u.
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संबंधित प्रश्न
Write the molecular formula of first two members of homologous series having functional group -Cl.
The following vegetables are kept in a basket :
Potato, Tomato, Radish, Brinjal, Carrot, Bottle-gourd
Which two of these vegetables correctly represent the homologous structures?
(A) Carrot and Tomato
(B) Potato and Brinjal
(C) Radish and Carrot
(D) Radish and Bottle-gourd
Give the structural formula for 1, 2-dichloroethane
Give the molecular formula of one homologue of the following:
C3H6
Write the names and formulae for the first three members of the homologous series for chloroalkanes.
The molecular formula of an organic compound is C18H36. Name its homologous series.
The molecular formula of the third member of the homologous series of ketones is:
(a) C4H8O
(b) C3H6O
(c) C5H10O
(d) C6H12O
Give the dot diagram of the first member of the alcohol.
Give the names of the first four members of the homologous series of
alkynes.
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 |
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 |
Which of the following pairs can be the successive members of a homologous series?
The first member of alkyne homologous series is
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?
Name and draw the electron dot structure of first homologue of alkynes series.
Name the third homologue of alcohols.
Name the following:
Group of organic compounds where the successive members follow a regular structural pattern, successive compounds differ by a 'CH2' group.
