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प्रश्न
Succeeding members of a homologous series differ by ______.
विकल्प
CH
CH2
CH3
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उत्तर
Succeeding members of a homologous series differ by CH2.
Explanation:
In a homologous series, each successive member differs from the previous one by a CH2 (methylene) group. This consistent difference maintains similar chemical properties while increasing molecular mass in a predictable pattern.
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संबंधित प्रश्न
State any four characteristics of a homologous series
Give the name and structural formula of one homologue of the following:
CH3OH
A colourless organic liquid X of molecular formula C2H4O2 turns blue litmus to red. Another colourless organic liquid Y of molecular formula C3H6O has no action on any litmus but it is used as a nail polish remover. A yet another colourless organic liquid Z of molecular formula C2H6O has also no action on litmus but it is used in tincture of iodine.
(a) Name the liquid X. To which homologous series does it belong? Give the name of another member of this homologous series.
(b) Name the liquid Y. To which homologous series does it belong? Write the name of another member of this homologous series.
(c) Can you name an organic compound having the same molecular formula as liquid Y but which belongs to a different homologous series? What is this homologous series?
(d) Name the liquid Z. To which homologous series does it belong? Write the name of another member of this homologous series.
Give the names and the structural formula of the first three members of the homologous series of alkanes.
Write the name and molecular formula of the first member of the homologous series of alkynes.
Why homologous series of carbon compounds are so called? Write chemical formula of two consecutive members of a homologous series and state the part of these compounds that determines their (i) physical properties, and (ii) chemical properties.
There are different general molecular formula for all members of the homologous series.
A carbon compound ‘A’ having melting point 156K and boiling point 351K, with molecular formula C2H6O is soluble in water in all proportions.
- Identify ‘A’ and draw its electron dot structure.
- Give the molecular formulae of any two homologues of ‘A’.
Define a homologous series.
Name the following:
Group of organic compounds where the successive members follow a regular structural pattern, successive compounds differ by a 'CH2' group.
