can I be able to track my iphone with the serial no or IMEI?

Short answer is NO. Long answer is that you can track your iPhone with the Find My app. To locate it in the Find My [Device] app, you must have activated the Find My app BEFORE the iPhone X was lost. Here is some information on that app ➔ If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support.

Note that your lost iPhone must be able to make the connection to the internet via Wi-Fi or cellular connection so that it can mark its location and broadcast it. 

Axel F.