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प्रश्न
The first member of alkyne homologous series is
पर्याय
ethyne
ethene
propyne
methane
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उत्तर
ethyne
Explanation -
The general formula for an alkyne is CnH2n-2. So, the first member of this series is C2H2 (ethyne).
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संबंधित प्रश्न
What is a homologous series?
State any four characteristics of a homologous series
Write the next homologue of the following: C2H4
Write the molecular formula of first two members of homologous series having functional group -Cl.
Write the molecular formula of first two members of homologous series having functional group −Br.
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
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?
Write the names and formulae for the first three members of the homologous series for chloroalkanes.
Define a homologous series. Give the name and structural formula of one homologue of the following:
CH3OH
What is a homologous series? Explain with an example.
Define homologous series of organic compounds. List its two characteristics. Write the name and formula of the first member of the series of alkenes.
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 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 _______.
Saturated hydrocarbon : Single bond : : Unsaturated hydrocarbon : _______
There are different general molecular formula for all members of the homologous series.
Study and complete the following table:
| Homologous series | Alkane | Alkyne |
| General formula | CnH2n+2 | 1. ______ |
| IUPAC name | 2. ______ | Ethyne |
| Common name | Marsh gas | 3. ______ |
Name the following:
Group of organic compounds where the successive members follow a regular structural pattern, successive compounds differ by a 'CH2' group.
