The pH values of three solutions A, B, C are given .

Solution A : pH value 12

Solution B : pH value 2

Solution C : pH value 7

Answer the following questions :

(i) Which solution will have no effect on litmus solution.

(ii) Which solution will liberate CO₂ when reacted with sodium carbonate.

(iii) Which solution will turn red litmus solution blue.

Choose the method of preparation of the following salts, from the methods given in the list:

List —
A: Neutralization
B: Precipitation
C: Direct combination
D: Substitution

(i) Lead chloride
(ii) Iron [II] Sulphate
(iii) Sodium nitrate
(iv) Iron [III] chloride

Complete the following by selecting the correct options from the choices :
pH of acetic acid is greater than dilute sulphuric acid. So, acetic acid contains …………… concentration of H⁺ ions. [greater, same, low]

Differentiate between the following pairs based on the information given in the brackets :
Acid and alkali [formation of type of ions]