Québécois is the term used for the variety of French spoken in Québec
and is also the term used to define the native population of Québec.
The correct pronunciation of Québécois in French is Keh-beh-kwa
. In French, "ois" is pronounced with a "wa" sound. The feminine for Québécois is Québécoise. This changes the pronunciation to Keh-beh-kwaz
. So in pronunciation the added "e" changes the "s" from silent to pronounced, and it is pronounced with a "z" sound.