how to close a google chrome tab from an android application?

[user2541457 via StackOverflow]

I am writing an android application to open a tab in chrome when the application is opened. My issue is that, when I close the android application the tab that is opened by me must be closed in chrome. If my application tab is already opened in Google chrome then that tab must be highlighted else the URL must be loaded in Google chrome. Please reply at the earliest.

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