Question

What is meant by homologous series of carbon compounds ? write the general formula of alkenes and alkynes .draw the electron dot structures of the first member of each serie​

Answer 1

Explanation:

A homologous series is a series of organic compounds that belong to the same family (i.e., possesses the same functional group) and show similar chemical properties. The members of this series are called homologues; they differ from each other by the number of CH2 units in the main carbon chain. General Formula AlkenesCnH2n: Alkynes: CnH2n-2 Structures The first member of alkenes is ethene and its structure is given below. The first member of alkynes is ethyne and its structure is given below : H-C≡ C-H

Answer 2

Answer:

What is meant by homologous series of carbon compounds ? write the general formula of alkenes and alkynes.

In the field of organic chemistry, a homologous series is a series of compounds with the same functional group and similar chemical properties in which the members of the series can be branched or unbranched. (1) alkenes - CnH2n. (2) alkane - CnH2n+2. (3) alkyne - CnH2n-2.

draw the electron dot structures of the first member of each series

Solution : (i) `underset("Ethane")(H:overset(H)overset(..)(C): :overset(H)overset(..)(C):H" or "H-overset(H)overset(|)(C)=overset(H)overset(|)(C)-H` (ii) `underset("Ethyne")(H:C: : : C:H" or "H-C-=C-H`.