Question

Checking bacterial contain in drinking water by testing sulphide

Answer 1

The sulphide ion test for bacterial contamination is good. In surface waters, hydrogen sulphide is formed under oxygen deficient conditions. Hydrogen sulphide is also produced from the decomposition of sulphur containing organic compounds. The concentration of sulphide ion becomes significant only at pH 10 or above.

Answer 2

Answer:

The sulphide ion test for bacterial contamination is good. In surface waters, hydrogen sulphide is formed under oxygen deficient conditions. Hydrogen sulphide is also produced from the decomposition of sulphur containing organic compounds. The concentration of sulphide ion becomes significant only at pH 10 or above.

Explanation: