Give any three characteristics of homologus series.
i. Each member of the series differs from the previous or succeeding member by and thus by 14 amu in molecular mass. For example the homologous series of , Methanol- \(CH_3OH\), Ethanol -\(CH_3CH_2OH\), Propanol- \(CH_3(CH_2)_2OH\).
ii. A homologous series members share the same elements and . For example the homologous series of ,Methanoic acid- \(HCOOH\), Ethanoic acid- \(CH_3COOH\), Propanoic acid- \(CH_3CH_2COOH\).
iii. A general molecular formula is used to represent them. For example, alkanes \(C_nH_{(2n+2)}\), \(C_nH_{(2n)}\) and \(C_nH_{(2n-2)}\).
iv. Members of each homologous series exhibit a regular gradation in as their molecular mass increases. For example, alkanes group compounds have weak Van Der Waals force.
v. Members of a homologous series have similar . For example, all alkanes on reaction with oxygen produce carbon dioxide, water with energy liberation.
vi. A common method can be used to all of the members in a homologous series. For example, aldehydes can be prepared by primary alcohol.
v. Members of a homologous series have similar . For example, all alkanes on reaction with oxygen produce carbon dioxide, water with energy liberation.
vi. A common method can be used to all of the members in a homologous series. For example, aldehydes can be prepared by primary alcohol.