1. Secondary chemistry book 3 by KLB
2. https://www.google.com/search?client=firefox-b-d&channel=trow&q=uses+of+hydrogen+sulphide+gas
compounds of sulpher
REFERENCES
Licensed under the Creative Commons Attribution Share Alike License 4.0
1. Secondary chemistry book 3 by KLB
2. https://www.google.com/search?client=firefox-b-d&channel=trow&q=uses+of+hydrogen+sulphide+gas
Licensed under the Creative Commons Attribution Share Alike License 4.0