Use of coagulants such as alum:
AResults in reduction of pH of the treated water
BResults in increase of pH of the treated water
CResults no change in pH of the treated water
DMay cause an increase or de-crease of pH of the treated water
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Related Questions:
Force is a __________quantity
In order to produce air tight riveted joint.............process is required.
കുട്ടികളുടെ ശാരീരിക നൈപുണികളിൽ ആദ്യം പ്രകടിപ്പിക്കാൻ സാധ്യതയുള്ളത്?
When
key is pressed the whole carriage goes down.
A device in which gas is allowed to mix with water and then impinges on a plate is called as...................