This has been a major problems with some of the newbies and also with the second hand mobile buyers that when they open the Google play store or Gmail inbuilt app they get the Email which is not theirs or they have to change it to new one. Follow the steps below and change or remove the Google account with ease.
Steps to remove Google account from Android phone
Step 1: First go to Menu, then Settings->Applications->Manage Applications.
Step 2: Click on the Google App. You can repeat this with all apps like Gmail, Google play, Drive and other Google apps.
Step 3: Click on the button labeled "Clear data".
A message will be prompted as "All information you've saved in this application will be deleted permanently". Click on OK.
You have successfully removed the Google account from your android device. Now to add new Google account follow the steps below.
Add new Google account to Android phoneGo to settings and click on "Data synchronization" or "Sync" option. And click on add account.
Add a new account here by choosing the add account option. Follow the steps and enter the details asked in that.
After following the whole above procedure. You will have your Google account linked with the Android device.
You can also link other Social media account from the step above. If you face any problem in adding or removing Google account from Android phone tell me in the Comment below.