Question

(a) What is the general name of the organic compounds containing the Figure group?
(b) Which of the following compounds contains a carboxylic acid group?
CH3OH, CH3COOH, CH3CHO, CH3COCH3
(c) How would you name the following compound?
Figure

Answer 1

Explanation:

(a) The appropriate names of group A from group B are:

Group A:

$C H_{3} C O O H$

$C H_{3} C H O$

$C H_{3} O H$

Group B:      

Ethanoic Acid    

Ethanal

Methanol      

(b)Structure of butanoic acid, $C_{4} H_{8} O_{2}:$

(c) The IUPAC name of acetic acid is methane carboxylic acid.

• It is a colourless liquid which has a very strong and distinct pungent/ sour smell.
• The chemical formula for methane carboxylic acid or ethanoic acid is $C_{2} H_{4} O_{2} \text { or } C H_{3} C O_{2} H \text { or } C H_{3} C O O H.$