25:11

Ionization enthalpy IIT

11:21

Spinning Cotton yarns

08:26

Jute plant

14:40

NaNO3, Ca(OH) 2 and NaNO3 formulas

08:24

MgCl2 formula

06:57

Mode of nutrition in plants

10:52

Nutrition in plants

04:12

Formula of CCl4

15:27

Formula of simple compounds

28:37

Viruses... Introduction

17:05

Modern Periodic Table

13:27

Some plant fibres

04:14

Synthetic fibres

16:53

Rules of chemical formula

12:18

Names , symbols of some ions and valancy

13:00

Chemical formula

09:43

Crystallization activity

06:25

Some ionic compounds ex||

12:07

What is an ion

08:07

Crystallization

07:19

Rusting of ships

11:21

Natural fibres

06:37

Fibres

10:11

Ratio by number of atoms

10:54

Molecules of compounds

13:34

IIT Hydration enthalpy

09:17

Rusting of iron s

08:51

Rusting of iron

06:17

Activity,,, pulling thread from fabric

08:09

Atomicity of some elements

10:49

Molecules of Elements

10:50

5 R principle

06:40

Plastics and the environment

16:07

Iit,,,Atomic and ionic radii

07:42

Iit,,,General trends

08:04

Chemical changes ex

09:49

Chemical changes ex

07:34

What is a molecule?

09:30

How do atoms exist?

12:17

Alkali metals

12:02

Alkali metals

10:01

Reaction of CO2 and lime water

07:07

Activity of chemical change

07:35

Variety in fabrics

09:13

Fibre to fabric

09:15

Atomic mass

14:01

Atomic mass

10:40

Limitations of Mendeleevs

10:29

Limitations

05:51

Reaction of Cuso4 and Fe

13:29

Cuso4 activity

05:00

Achievements

08:42

Mendeleevs achievements

12:36

Burning of mg ribbon ,,,

08:18

Burning of mg ribbon

09:46

Exercise qsns

09:33

Exercise qsns chapter-1

10:27

Atomic mass

08:50

Atomic mass

09:43

Mendaleevs