Which of the following processes can remove both temporary as well as permanent hardness of water ?

Related Mcqs:

Shaving soaps are____________________?

A. Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather a lasting property B. Metallic soaps compounded with frothing agents C. High free alkali soaps having excess of cane sugar and alcohol D. None of these...

Penicillin, an antibiotic drug was discovered by__________________?

A. Alexander B. Flaming C. Doctor Zhivago D. None of these...

Linde process of gas liquefaction employs__________________?

A. Exchange of heat with colder stream B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion) C. Adiabatic expansion against a piston or in a turbine D. Merely compressing the gas beyond its critical pressure...

____________ are used as corrosion inhibitor for iron & steel in aqueous solutions ?

A. Phosphates B. Chromates C. Sulphates D. Bi-carbonates...

______________ is obtained as a by-product in the manufacture of sodium hydroxide using brine ?

A. Chlorine B. Ammonium chloride C. Sodium carbonate D. Sodium bi-carbonate...