The method of balancing a chemical equation is called:

Correct option is A

The correct ans is (a) Hit and Trial Method​

The method of balancing a chemical equation is called the Hit and Trial Method (also known as the Trial and Error Method)

• Balancing a chemical equation ensures that the number of atoms of each element on the reactant side equals the number of atoms on the product side, following the Law of Conservation of Mass.
• In the Hit and Trial Method, coefficients are adjusted systematically by trial and error until both sides have an equal number of each type of atom.

Example:

Balancing:

H2+O2→H2OH_2 + O_2 \rightarrow H_2OH2​+O2​→H2​O

• Count atoms:
  • Reactants: 2 hydrogen, 2 oxygen
  • Products: 2 hydrogen, 1 oxygen
• Balance oxygen by adjusting water molecules:

H2+O2→2H2OH_2 + O_2 \rightarrow 2H_2OH2​+O2​→2H2​O

• Now, hydrogen is unbalanced (2 on reactant side and 4 on product side).
• Balance hydrogen:

2H2+O2→2H2O2H_2 + O_2 \rightarrow 2H_2O2H2​+O2​→2H2​O

Balanced equation with the Hit and Trial Method.