Common coagulants (salts) used in conventional water treatment include the following alum (aluminum sulfate), sodium aluminate, ferric sulfate, ferrous sulfate, ferric chloride, and polymers. Question 1 options: True False

True

Explanation:

This is the true statement .

Because There are two types of metal coagulants used : aluminium and iron.

The aluminum coagulants include aluminum sulfate, aluminum chloride and sodium aluminate.

The iron coagulants include ferric sulfate, ferrous sulfate, ferric chloride and ferric chloride sulfate.

idk what the question is about

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter