Soap cannot be used with hard water, because _________________?

Related Mcqs:

Lithophane is ___________________?

A. Explosive B. White lead C. Filter aid D. ZnS (white pigment)...

Penicillin is separated from fermented broth by ____________________?

A. Extraction with amyl or butyl acetate B. Ternary Azeotropic distillation C. Evaporator in calandria D. Extractive distillation...

Oleum produces fumes of_____________________?

A. SO2 B. H2SO4 C. SO3 D. SO2 + H2SO4...

White phosphorous is stored under water, because __________________?

A. It does not react with water B. It is poisonous C. Its kindling temperature in dry air is very low D. It is unstable...

Phthalic anhydride is used____________________?

A. In making PVC B. As plasticisers C. In insecticides manufacture D. For making nylon-6...