16:19

Chapter 2 S-Block Elements| Peculiar Nature Of Beryllium|

25:10

Chapter 2 S Block Elements|Class 12 Chemistry PTB| What are S-Block Elements

23:10

Chapter 1 Class 11 Chemistry PTB| Exercise Questions 9 and 10

28:42

Chapter 1 Class 11 Chemistry PTB|Exercise Questions 4 to 8

30:32

Chapter 1 Class 11 Chemistry PTB| Exercise Questions 1,2 And 3

14:56

Chapter 1 Class 12 Chemistry PTB| Position Of Hydrogen In The Periodic Table

15:24

Chapter 1 Class 12 Chemistry PTB| Periodic Table| What Are Oxides?

22:00

Chapter 1 Class 12 Chemistry PTB| Halides and Hydrides

27:33

Chapter 1 Class 12 Chemistry PTB| Periodic Trends

12:32

Chapter 1 Periodic Table Class 12 Chemistry PTB| Trends Of Ionization energies,E.A

13:46

Chapter 1 Class 12 Chemistry PTB|Periodic Table And Periodicities| Trends Of Atomic and Ionic Sizes

28:54

Chapter 1 Class 12 Chemistry PTB|Periodic Table And Periodicities| An Overview Of The Periodic Table

18:49

Review Exercise Chapter 5 Class 9 Maths PTB

32:47

Class 12 Chemistry PTB Chapter 1 Periodic Classification| An Introduction to Periodic Table

33:52

Chapter 5 Factorization Class 9 Maths PTB|Exercise 5.4 (Complete)

22:48

Class 11 Chemistry PTB Chapter 1 Basic Concepts| Stoichiometric Problems

13:34

Chapter 1 Basic Concepts Class 11 Chemistry PTB | Limiting Reactant and Percentage Yield

24:54

Class 11 Chemistry Chapter 1 Basic Concepts |Mole-Mass-Avagadro's Number problems Limiting Reactant

16:57

Chapter 1 Chemistry Class 11 Basic Concepts|Deduce Empirical Formula For Combustion Analysis

14:41

Class 11 Chemistry PTB Chapter 1 Basic Concepts|Empirical Formula and Molecular Formula (Lecture #4)

16:19

Class 11 Chemistry PTB Chapter 1 Basic Concepts| Mole and Avogadro's Number (Lecture #3)

18:29

Relative Atomic Mass And Average Atomic Mass

11:44

Class 11 Chemistry PTB Chapter 1 Basic Concepts| Mass Spectrometry

22:30

Class 11 Chemistry PTB Chapter 1 Basic Concepts | Isotopes (Lecture #2)

35:22

Chapter 1 Basic Concepts Class 11 Chemistry (Lecture #1)

46:27

Class 9 Maths PTB Chapter 5 Factorization| Exercise 5.3

51:35

Chapter 5 Class 9 Maths PTB Factorization

14:11

Chapter 16 Class 10 Chemistry PTB (Lecture#7)

13:43

Chapter 16 Class 10 Chemistry PTB (Lecture #6)

15:54

Chapter 16 Class 10 Chemistry PTB (Lecture #5)

17:27

Class 10 Chemistry PTB Chapter 16 Industrial Chemistry ( Lecture #4)

25:47

Chapter 16 Class 10 Chemistry PTB (Lecture #2)

22:44

Class 10 Chemistry PTB Chapter 16 (Lecture #1)

10:20

Chapter 15 Water Class 10 Chemistry PTB (Lecture #6)

29:29

Chapter 15 Water Class 10 Chemistry PTB (Lecture #5)

22:48

Chapter 15 Class 10 Chemistry PTB Environmental Chemistry Water (Lecture #4)

15:41

Chapter 15 Class 10 Chemistry PTB Environmental Chemistry Water (Lecture#3)

17:19

Chapter 15 Class 10 Chemistry PTB Environmental Chemistry Water (Lecture #2)

12:03

Chapter 15 Class 10 Chemistry PTB Environmental Chemistry Water (Lecture #1)

18:11

Chapter 5 Factorization Class 9 Maths PTB| Exercise 5.2 Q:1 Q:2

39:43

Chapter 14 Environmental Chemistry Class 10 Chemistry PTB|An Introduction to Environmental Chemistry

09:12

Chapter 13 Biochemistry Class 10 Chemistry PTB (Lecture #6) | What Are Vitamins?

21:44

Chapter 13 Biochemistry Class 10 Chemistry PTB (Lecture #5) | What are Nucleic Acids?

19:16

Chapter 13 Biochemistry Class 10 Chemistry PTB (Lecture #4)

17:49

Chapter 13 Biochemistry Class 10 Chemistry PTB (Lecture #3)

23:01

Chapter 13 Biochemistry Class 10 Chemistry PTB (Lecture#2)

21:20

Chapter 5 Factorization Class 9 Maths PTB

18:13

Chapter 13 Biochemistry Class 10 Chemistry PTB

21:36

Chapter 5 Factorization Class 9 Maths PTB

14:56

Class 10 Chemistry PTB Chapter 12 Hydrocarbons (Lecture #9)

12:58

Chapter 12 Class 10 Chemistry PTB HYDROCARBONS (Lecture#8)

11:45

Chapter 12 Hydrocarbons Class 10 Chemistry PTB (Lecture #7)

22:56

Chapter 12 Hydrocarbons Class 10 Chemistry PTB (Lecture #6)

16:17

Chapter 12 Hydrocarbons Class 10 Chemistry PTB( Lecture #5)

26:29

Class 9 Maths PTB Chapter 4 Algebraic Expressions and Algebraic Manipulations

07:00

Chapter 12 Hydrocarbons Class 10 Chemistry PTB ( Lecture#4)

11:57

Chapter 12 Class 10 Chemistry Hydrocarbons (Lecture #3)

19:59

Chapter 12 Class 10 Chemistry PTB HYDROCARBONS (Lecture#2)

14:19

Chapter 12 Class 10 Chemistry PTB HYDROCARBONS (Lecture#1)

06:44

What is Formal Charge?