53:55

Lecture 04

40:35

lecture-09 AMINE (PREPARATION)

49:50

lecture-08 AMINE (STRUCTURE, BONDING & PREPARATION)

53:42

LECTURE 1 GASEOUS UNIT 4TH

34:02

lectue-07 AMINE

24:40

organic chemistry lecture 06

45:12

Nitrogen containing compound # reactions # picnic acid formation

28:49

12th Class Physics Most Important Question 2025 || Class 12th Physics Objective Question 2025