Study Materials Video lecture Class-10 Carbon and its compounds Complete Video Lecture Lecture -1 Lecture - 2 Lecture - 3 Solution Lecture -1 Lecture -2 Lecture -3 Lecture -4 Lecture -5 Lecture -6 Lecture -7 Lecture -8 Lecture -9 Lecture -10 Lecture -11 Trigonometric function :- Lecture -1 Lecture -2 Finkelstein Reaction video Lecture Fisher esterification reaction and mechanism How to calculate valency? Preparation of sodium hydroxide How to Write Chemical formula? Conservation of mass Balancing of chemical equation