It is not possible to Make account on Facebook without Last name because it is against the policies of facebook. But if you want to make your facebook profile with First name without using last name then simply follow my given steps.
Firstly Change your Browser Proxy Manually.
HTTP Proxy 202.70.136.142
PORT 8080
Then Save Your Settings.
Now Open your Facebook Account Name Settings.
Then Simply remove Your Last Name And Save it.
Now Your Facebook Account is only with First Name Without Last Name.
After Completing all steps remove Manual Proxy and select use system proxy settings
Important Note:- Firstly Open your facebook account settings then change proxy because sometime after changing proxy their will be error in log in account
Firstly Change your Browser Proxy Manually.
HTTP Proxy 202.70.136.142
PORT 8080
Then Save Your Settings.
Now Open your Facebook Account Name Settings.
Then Simply remove Your Last Name And Save it.
Now Your Facebook Account is only with First Name Without Last Name.
After Completing all steps remove Manual Proxy and select use system proxy settings
Important Note:- Firstly Open your facebook account settings then change proxy because sometime after changing proxy their will be error in log in account