Simple A320 Flap question

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Hi

Just training on A320 and I have a question about Flap 2.

On a departure or a Go Around when is Flap 2 used?

I believe that Flap 2 is missed in the retraction of Flaps from Flap 3 to Flap 1 on a normal departure. I am under the impression that this is also the case for the G/A both single engine and both working.

So am I correct in thinking that the only time its used in the flap retraction schedule is when you plan for a Flap 3 landing and the G/A, retracting the Flap up 1 to Flap 2??

If not or so where is this information found?

Also, when commencing a Go Around, I know that if both Autopilots were engaged that the aircraft will carry out the Go Around with the automatics. Does this apply if only 1 Autopilot was engaged or does the Autopilot trip out leaving the pilot to fly the aircraft?

Appreciate your help.