using Nmap for scanning ports trough whonis gateway

i want to use Nmap in kali linux to scan open ports for a particular host trough Whonix gateway , but i hear that Nmap will shows many false open ports , please any solution to how we use Nmap trough Whonix to scan just ports of the host .

Banned subject:

Free Speech Limitations on Kicksecure ™ Website and Kicksecure ™ Chat

Allow discussion anonymous pentesting in Whonix forums?