Write IUPAC name and structure formula of the following—

(i) C₅H₁₂ (ii) C₄H₈ (iii) C₃H₄

23

Write any three difference between the properties of diamond and graphite.

24

What do you mean by Catenation nature of Carbon?

26

Write two uses of freons.

27

Why is CNG considered better fuel than LPG?