Q (a) Complex forming agents can be used to determine hardness of water how? Explain with the help of following points. (i) Principle (ii) Chemical reactions (iii) Structure (iv) Calculations. (b)...

Extracted text: Q (a) Complex forming agents can be used to determine hardness of water how? Explain with the help of following points. (i) Principle (ii) Chemical reactions (iii) Structure (iv) Calculations. (b) Calculate the quantity of lime and soda required for softening one million litre of the following sample of water. If the purities of lime and soda are 80% and 85% respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30 mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit. (c) Discuss different chemical methods which have been used for the synthesis of nanomaterial with special reference to temperature and solvent along with their advantages and disadvantages.