Question

How to test the presence of Chromium, Iron, Copper and Nickel in water?

Plz answer it fast.....the best answer with proper explanation and balanced equation will be marked as brainliest.

Answer 1

Answer:

chromium in water

Explanation:

1:Prepare a water sample for testing by placing 10.0 mL of water in a test tube. Test a sample of tap water and the sample labeled polluted water. Add 12 drops pf 3 M sulfuric acid to the sample. Pipet 0.5 mL of diphenylcarbazide solution into the test tube and allow 5 minutes for color development.