Official Language of Quebec. In Quebec City, French is the dominant language. The official language of Québec is often confused with the official languages of Canada. While Canada is officially a bilingual country (French and English), Québec is officially a unilingual province; the official language of Québec is French.
http://french.lovetoknow.com/Official_Language_of_Quebec
Most subjects in schools in the English school system are actually taught in French. From what I can tell from listening to the children of Anglophone friends speak French, these schools do a pretty good job. It is a well-documented fact that Anglophones living in Quebec are by far the most bilingual Canadians. Any child who has gone through a French immersion school in the English school system can hold his or her own in most contexts. But here’s the problem: French schools do it better.
http://induecourse.ca/language-in-quebec-schools-its-time-for-a-rethink/
French in the East, English in the West and a mix downtown. Most of people can speak both languages. In the rest of Québec, you'll find almost only French speakers (in Québec city, may be around 99 %). So, to answer your question, yes, people really mostly speak (and live in) French in Québec. This is not Louisiana (no offense). As for the difference in language, let's say that French in Québec is to France what English in United States is to Great Britain.
http://www.fodors.com/community/canada/do-people-really-mostly-speak-french-in-quebec.cfm
No one has yet been bombed, but anglophones have nevertheless been targeted by those who feel it is their personal duty to enforce French supremacy. As the FLQ was a product of the Quiet Revolution, recent attacks seemed to have been sparked by the Parti Québécois' electoral victory on September 4, 2012.
http://www.huffingtonpost.ca/tom-kott/anglophone-quebec_b_2053199.html
In practice, there are regions of Québec where many English speakers live, and English speakers who do not speak French are not left stranded every time they need official paperwork. The Province of Québec is just one of the many French speaking areas of the world where French is an official spoken language.
http://french.lovetoknow.com/Official_Language_of_Quebec
Five Things You (Probably) Don’t Know About Quebec City. December 17, 2012 /. 1. French Not Required – Quebec is a complicated province. Thanks to a quirky history, the province is a bastion of French life in North America. French is the majority and sole official language of the province and about 80% of the population are native francophones.
https://landlopers.com/2012/12/17/discover-quebec-city
Five Things You (Probably) Don’t Know About Quebec City. 1. French Not Required – Quebec is a complicated province. Thanks to a quirky history, the province is a bastion of French life in North America. French is the majority and sole official language of the province and about 80% of the population are native francophones.
https://landlopers.com/2012/12/17/discover-quebec-city
The FLQ formed in 1963 -- around the same time as the Quiet Revolution and a rise in nationalism -- and spared no time pushing their radical vision of an independent Quebec. They began planting bombs in the mailboxes of wealthy Anglophones in the Westmount area.
http://www.huffingtonpost.ca/tom-kott/anglophone-quebec_b_2053199.html
I am travelling to Quebec City this weekend for 5 days. I am very excited, but wondering how bilingual the city is? Having travelled to Montreal a couple of months ago, I was pleasantly surprised at the amount of bilingualism - people were so nice!
https://www.tripadvisor.com/ShowTopic-g155033-i134-k2824447-English_Only-Quebec_City_Quebec.html
Parti Quebecois Leader Pauline Marois returns to complete her speech after being whisked off the stage by security as she delivered her victory speech in Montreal, Que., Tuesday, September 4, 2012. With the win, Marois becomes the first female premier in Quebec history.
http://www.huffingtonpost.ca/tom-kott/anglophone-quebec_b_2053199.html
what language do they speak in quebec city
In Quebec city, they speak the French language. They speak the French language in Quebec city.  In Quebec city the language spoken is French.