43:50

structural organisation in animals 6

52:18

IUPAC name of nitroalkanes, alkyl nitrites, nitrile,amide

39:54

Lipids or fats

51:49

Biomolecules

29:56

Distillation,fractional distillation

36:05

Simplification Class 5th

46:40

Inductive effect, resonance structure, resonance effect, electrometric effect

42:05

Dumas method