I have created alias for username and it works fine
alias yb="ssh name@hostname"
It works fine, but I also want to create alias for password, Can anyone help how can I do this?
Before we start, it's not a good thing to do... you should use ssh keys instead!
You can use
sshpass, it's a non-interactive ssh password authentication.
Install it using your package manager, for example in Debian based distributions:
sudo apt install sshpass
then in your bashrc:
alias yb="sshpass -p password_in_plain_text ssh name@hostname"