Which of the following phenomena occur, when a small amount of acid is added to water?

Q. Which of the following phenomena occur, when a small amount of acid is added to water?

i. Ionisation

ii. Neutralisation

iii. Dilution

iv. Salt formation

1. and (ii)
2. and (iii)
3. and (iii)
4. and (iv)

Answer: (i) and (iii)