Permanent hardness of water can be removed by____________________?

Related Mcqs:

Naphthols are derivatives of________________?

A. Methyl amine B. Naphthalene C. Phenol D. Xylene...

Poly Vinyl Chloride (P.V.C.) is a ______________ material ?

A. Thermosetting B. Thermoplastic C. Fibrous D. Chemically active...

Hydrophilic group of a soap or detergent solution is____________________?

A. Water hating B. Soil loving C. Water loving D. None of these...

Kaolin is a/an _____________________?

A. Refractory material B. Synthetic resin C. Artificial abrasive D. Blue pigment...

Reaction of an alcohol with organic acid is called the ________________ reaction?

A. Saponification B. Esterification C. Neutralisation D. Acidification...