The practice of suspending rust particles in contaminated water, and then drawing out the rust with hand-held magnets, has been effective in dealing with
A) DDT contaminated water
B) arsenic contaminated water
C) oil contaminated water
D) heavy metal contaminated water
E) acidified water secondary to acid rain

Question

Quizplus · Accepted Answer

The method of using rust particles and magnets is effective for arsenic contaminated water because the rust (iron oxide) can bind with arsenic, allowing it to be removed from the water when the rust is magnetically extracted.

The Practice of Suspending Rust Particles in Contaminated Water, and Then