[![enter image description here](https://i.stack.imgur.com/1ZQIn.png)](https://i.stack.imgur.com/1ZQIn.png)

I am trying to find out if I can use ARCH/GARCH models. To my knowledge, to use ARCH/GARCH models you should have autocorrelation and this correlogram should not be a white noise. How can I know if this is a white noise or not?