`0.002` moles of an acid is added to a litre of buffer solution, decreases the pH of the buffer by `0.02`. Then the buffer capacity is

When 0.2 mole of an acid is added to 4 lit of a buffer solution, the P^(H) of the buffer decreases by 0.5 . What is the buffer capacity of the solution.?

When 0.1 mole of an acid is added to 2 lit of a buffer solution, the P^(H) of the buffer decreases by 0.5 The buffer capacity of the solution is

When 0.1 mole of an acid is added to 2 L of a buffer solution, the P^(H) of the buffer decreases by 0.5 . The buffer capacity of the solution is

When 0.1 mole of an acid is added to 2 L of a buffer solution, the P^(H) of the buffer decreases by 0.5 . The buffer capacity of the solution is

When 0.002mol of acid is added to 250 mL of a buffer solution, pH decreases by 0.02 units. The buffer capacity of the system is

When 0.002mol of acid is added to 250 mL of a buffer solution, pH decreases by 0.02 units. The buffer capacity of the system is

When 0.01 moles of NaOH are added to 1 litre of a buffer solution , its pH changes from 4.745 to 4.832. The buffer capacity is

When 0.01 moles of NaOH are added to 1 litre of a buffer solution , its pH changes from 4.745 to 4.832. The buffer capacity is