Close a single tab: Tap the Open tabs icon then tap the X in the upper-right corner of the tab that you want
to close. You can also swipe the tab to the left or right off of the
screen to close it.
Close Incognito tabs: Tap the Open tabs icon . From the stacked Incognito tabs view, tap the Menu Key
, then tap Close incognito
tabs.
Close all tabs: Tap the Open
tabs icon ,
tap the Menu Key
, then tap Close
all tabs.
Closing the Chrome app (or even turning the phone off) will not close your open tabs. Your tabs remain open until you close them.