Question

Question 12.7 Give condensed and bond line structural formulas and identify the functional group(s) present, if any, for :

(a) 2,2,4-Trimethylpentane

(b) 2-Hydroxy-1,2,3-propanetricarboxylic acid

(c) Hexanedial

Class XI Organic Chemistry : Some Basic Principles and Techniques Page 362

Answer 1

To write condensed formula and bond line formula first of all we have to write complete structure formula.
  (a)  CH₃                CH₃
           |                    |
CH₃--C---CH₂-------CH-----CH₃
          |
         CH₃  
2,2,4-trimethylpentane 

(b)                     OH
                           |
HCOOH---CH₂--C----CH₂----COOH
                           |
                          COOH
2-hydroxy-1,2,3-propanetricarboxylic acid

(c) OHC----CH₂---CH₂-----CH₂----CH₂---CHO
             Hexanedial 

for condensed formula , bond line formula and functional group ,Please see attachment , here it is clear.