Question

Observe the following structures and answer the questions given below.

1. \[\ce{CH3 - CH2 - CH2 - CHO}\]
2. 
   \[\begin{array}{cc}\ce{CH3 - CH - CHO}\\
   |\phantom{...}\\\ce{CH3}\end{array}\]

a. What is the relation between (i) and (ii)?

b. Write IUPAC name of (ii).

c. Draw the functional group isomer of (i).

Answer 1

1. (a) and (b) are chain isomers of each other.
2. IUPAC name of structure (b) is 2-methylpropanal.
3. Functional group isomer of (a) is butanone.
   \[\begin{array}{cc}\ce{H3C - CH2 - C - CH3}\\
   \phantom{.......}||\\\phantom{.......}\ce{\underset{\text{Butanone}}{O}}\end{array}\]