1:35:24

THE UNIVERSE OF AIMERS is live

1:09:00

THE UNIVERSE OF AIMERS is live

1:09:11

THE UNIVERSE OF AIMERS is live

26:50

THE UNIVERSE OF AIMERS is live

1:01:40

Acidic nature of Carboxylic Acid

24:55

THE UNIVERSE OF AIMERS is live

47:41

Nomenclature of Hydrocarbons-2

34:30

F block elements