Q. Lead acetate test in sewer manhole is done to test the presence of (Solved)
1. Methane gas (B) (C) (D)
2. Hydrogen sulphide
3. Carbondioxide gas
4. Diesel vapours
- b. Hydrogen sulphide
1. Methane gas (B) (C) (D)
2. Hydrogen sulphide
3. Carbondioxide gas
4. Diesel vapours