Final answer:
To open developer tools in Chrome on Android, enable USB debugging on your device, connect it to a computer, and use Chrome's 'chrome://inspect/#devices' on the computer to remotely debug the mobile session.
Step-by-step explanation:
To open developer tools in Chrome on Android, you will need to use a workaround as the Android version of Chrome does not directly support developer tools. One common method involves using remote debugging. First, ensure you have USB debugging enabled on your Android device. This can be found in the Developer Options menu, which may need to be enabled by tapping the build number within the About Phone section in Settings multiple times. After USB debugging is enabled, connect your Android device to a computer via USB.
Next, open Chrome on your computer and navigate to 'chrome://inspect/#devices'. You should see your Android device listed there. Click on the 'Inspect' link next to the webpage that you want to debug. This will open up the Chrome Developer Tools for the session running on your Android device. Now you can use the tools as you would on a desktop version of Chrome to inspect elements, view console logs, and more.