Answer : the correct option is, A
Explanation :
- Law of conservation of mass : It is defined as the mass of each type of atom on the reactant side must be equal to the mass of each type of atom on product side.
In the chemical reaction, some substances react together are called reactant and the substance are formed are called product.
- During the chemical reaction, the atoms of reactants rearranged to make products. There are no atoms are added or taken away in the reaction. That means mass remains conserved.
From the given diagram, we conclude that the arrangement of molecules are different on both side.
On the reactant side, the purple molecules bonded with red and white molecule and the green molecule with white molecules. On the other hand i.e on product side, the red molecule bonded with two white molecule and purple molecule bonded with green molecules. The molecular arrangement are different on both side of the reaction mixture. But, the mass remains conserved.