Science and Education Publishing World Journal of Chemical Education 1 1 2013 09 29 Design and Fabrication of a Bench-top Gas Generator for Four Year Undergraduate Laboratory Classes 9 11 EN Mala Das Sharma Department of Chemistry, St. Pious X Degree and PG College for Women, Snehapuri Colony, Nacharam, Hyderabad, India WJCE2013113 10.12691/wjce-1-1-3 2013 09 22 2013 09 28 2013 09 29 A simple and cost-effective bench-top gas generator for its use in the laboratory classes is designed and fabricated. The set-up is meant for generation of hydrogen sulfide gas and is in use by the students at the chemistry laboratory of our college for the past eight years. However, other gases like carbon dioxide, hydrogen and acetylene can also be produced using the same set-up. This article describes the design and fabrication of the bench-top set up with special reference to generation of hydrogen sulfide gas. The new set-up is easy to use and requires few chemicals.