Which of the following is used as a coagulant in water treatment ?

Related Mcqs:

Baking soda is chemically represented by__________________?

A. Na2CO3 B. NaHCO3 C. Na2CO3.H2O D. Na2CO3.10H2O...

Favourable conditions for the liquefaction of gases in general are _____________________?

A. High pressure & low temperature B. Low pressure & high temperature C. High pressure & high temperature D. Low pressure & low temperature...

Chemical formula of ‘salt cake’ is____________________?

A. Na2SO4 B. CaSO4 C. MgSO4 D. BaSO4...

In sulphate pulp manufacture, the pressure and temperature in the digestor is____________________?

A. 10 atm., 800 °C B. 10 atm., 170-180°C C. 1 atm., 170 – 180°C D. 1 atm., 800°C...

Phosphoric acid is prepared from_____________________?

A. Cryolite B. Chalcopyrite C. Rock phosphate D. None of these...