Anyone who can help me to create and remove multiple accounts on WhatsApp for iPhone?

Yes, you can switch to multiple accounts now on your iPhone. To create a second WhatsApp account on an iPhone, open WhatsApp and go to Settings. Tap the icon to select Add Account. Accept the terms, enter and verify a different phone number, then add your name and optional profile details. After completing the setup, WhatsApp will register your second account. This will allow you to switch between both accounts within the app. But if you want to remove an account, go to settings, then tap remove account, and select go to chat backup. Then confirm the phone number and tap Remove.