Question

Write the name and formula of the second member of the carbon compounds having functional group-OH.(All India - 2012)

Answer 1

Dear Student,

◆ Answer -

2nd member of alcohols => ethanol (CH3-CH2-OH)

● Explanation -

Compounds with functional group form a homologous series called alcohols.

First member of alcohols series is methanol having molecular formula CH3-OH. i.e. CH4O.

Second member of alcohols series is ethanol having molecular formula CH3-CH2-OH. i.e. C2H6O.

Thanks dear. Hope this helps you..

Answer 2

The name of the second member of the OH functional group is Ethanol.

1. Ethanol is commonly called alcohol(even the OH group itself is called Alcohols) as it is but Ethanol that is commercially sold as drinkable alcohol.
2. The chemical formula of the second member:

• Since we are talking about the second member, we are taking into consideration two carbon atoms.
• The formula for compounds of alcohol group is CnH2n+1OH.
• Here, n=2. Therefore, formula of Ethanol is C2H5OH.