Was Ontario formed before Quebec

Answer 1

No. The two modern day provinces of Ontario and Quebec were formed simultaneously by the splitting of the Province of Canada upon its entering into Canadian Confederation with New Brunswick and Nova Scotia.

Historically, there was a Province of Quebec long before there was a Province of Ontario. It was created from the colony of Canada when Britain acquired New France, and comprised land including parts of modern day Quebec and Ontario. It was split into Upper and Lower Canada (modern day Ontario and Quebec) before eventually being reunited as the afore mentioned Province of Canada.