How to unlike multiple pages on Facebook, here are some tips to do that. In here, we discuss both in mobile and desktop devices.
How to unlike a single Facebook page – Both Mobile and Desktop
First, you can go to the relevant page. Then, you can see a like button.

If you click that liked button, you can see a pop-up with two option by asking to “Unlike” or “Cancel”. You can choose your option unlike to unlike that page. This method work on both mobile and Desktop Application.
This is simple, right?
But you can have a problem with removing a significant number of pages, unfollowing one at a time is tedious and time-consuming work.
How to unlike multiple pages on Facebook
In your mobile, tap the “more” icon at the top right-hand side corner.

After that, go to “Settings” under “Settings and Privacy” tab.

Then select your account.

After that, scroll down a little bit and, you can see “Activity Log” under “Your Facebook Information” section. Go to Activity Log. Then click on the “Connections” tab, you can see these kinds of options and more.

You can see an option called “Pages, Pages like and Interests“. Go inside that, and you can see all your pages, page likes and interests. You have to click on the 3 dots icon and click the “unlike” option that come from the pop-up. That’s it. You’ll need to do this rather than simply unfollowing the page. So do it, fellas!!
In the desktop, click on your name at the top right-hand corner of the page or go to “http://www.facebook.com/YOUR-FB-NAME/allactivity“. Find the “Connections” tab in your “More” or “Settings” tab. Then find “Pages, Pages like and Interests“. This displays a handy list of all the pages you currently have liked. Click the “More” button or 3 dots Icon and do the “unlike” things. Easy, right? Comment below, if you have any problem.