.htaccess

I don't see why not.

As long as you can write in a folder (using a FTP client or the file manager from Cpanel) you can create a file called .htaccess.

If the server will actually use that file, you'll have to test or ask support.

HTH,
Dan

Yes you can, 000webhost provideds guides to some common solutions
https://www.000webhost.com/forum/t/how-should-i-edit-htaccess/31178/6

can I edit (or create ) .htaccess file on free account

Yes you can

is this something I can test  (and show you ) by running

.htacces [sample 1 - simple redirect]

redirect /index2.html /index.html

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Make sure you have a index.html and enter URL to index2.html - should be redirected to index.html

.htaccess[sample 2 - simple rewrite]

RewriteEngine on
RewriteBase /

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^index2.html$ index.php [L,NC,QSA]

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Same as above except not a redirect but a rewrite so you should see index.html but the URL will still say index2.html

this fixed a 500 error I was having.

server(wordpress)/folder/NotReal.php  kept me at same location
server(wordpress)/folder/NotReal.php
 maybe because wordpress located on root


please see related question