Write the names of the following functional groups:

(i) –CHO (ii) –OH (iii) –COOH (iv) C=O (v)

36 Give one example each of the compounds having the following functional groups:

(i) Aldehyde group

(ii) Alkyne group

37 What is the molecular formula and structure of the alcohol which can be thought to be derived from pentane? 37 What makes the candle flame yellow and luminous? 38 What is homologues series? Explain with an example.