CBSE Class 9 Chemistry Laws of Chemical Combination


Statement: ‘Matter can neither be created nor destroyed’.

Above statement is related to which among these laws?


In the reaction, Fe + S FeS 

If mass of reactants is 90 g, then the mass of the product is


Which among the following is one that illustrates the law of multiple proportions?

Atoms and Molecules - Exam Decoded - 2

This video contains questions based on the laws of chemical combination, symbols, valencies and writing chemical formulae.