to Remember A group or class of organic compounds related to each other by a general molecular formula constitutes homologous series. The IUPAC name of the any organic compound consist of three parts. ROOTWORD, PREFIX and / or SUFFIX . Functional group may be defined as an atom or group of atom or reactive part which is responsible for the characteristic properties of the compounds Ethanoic acid is most commonly known as acetic acid and belongs to a group of acids called carboxylic acids.
Ethanol or ethyl alcohol or simply alcohol is one of the most important members of the family of alcohols. The slow chemical change that takes place in complex organic compounds by the action of enzymes leading to the formation of simple molecules is called fermentation. Soaps are sodium or potassium salts of some long chain carboxylic acids. Detergents are sodium salts of sulphonic acids.
Thus instead of –COOH group in soaps, detergents contain –SO H group TEXTBOOK EVALUATION I. Choose the best answer. . The molecular formula of an open chain organic compound is C H .
The class of the compound is a. alkane b. alkene c. alkyne d.
alcohol . The IUPAC name of an organic compound is -Methyl butan- -ol. What type compound it is? a.
Aldehyde b. Carboxylic acid c. Ketone d. Alcohol .
The secondary suffix used in IUPAC nomenclature of an aldehyde is a. - ol b. – oic acid c. - al d.
- one . Which of the following pairs can be the successive members of a homologous series? a. C H and C H b.
C H and C H c. CH and C H d. C H OH and C H OH . C H OH + 3O → 2CO + 3H O is a a.
Reduction of ethanol b. Combustion of ethanol c. Oxidation of ethanoic acid d. Oxidation of ethanal .
Rectified spirit is an