Page attributes are arranging the pages into filesystem-like hierarchies by making them children of parent pages. In the Attributes box on any single page’s Edit screen, we’ll be able to select another existing page as the parent which in turn, have another parent, and so on.

Posts are shown in a chronological sequence on a single page, such as your home page or an archive of posts from a particular date and can also be tagged or filed into category.
        Pages are generally not grouped in chronological order. It will appear on its own screen. Anyone can create a list of pages using a widget or a menu.
        Moreover, comments are allowed in post but in page it’s not allows.