Question

what is homologous series? write 5 characteristics ?​

Answer 1

Answer:

A series of similarly constituted compounds in which the members present have the same functional group and similar chemical properties and any two successive members in a particular series differ in their molecular formula by a CH2 unit is called a homologous series.

Characteristics of a homologous series:

• All the members of a homologous series can be represented by the same general formula.

• Any two adjacent homologous differ by 1 carbon atom and 2 hydrogen atoms in their molecular formula.

• All the compounds of a homologous series show similar chemical properties.

• With increase in the molecular mass,the gradual change in the physical properties occurs.

Example : The melting and boiling points increase with increasing molecular mass.

• The difference in the molecular masses of any two adjacent homologous or members is 14 u.

Answer 2

Answer:

the green substance in plants that takes in light from the sun to help them to grow