Sorry, I don't know...

I see that it's a sport weight yarn and I know there are some sport weight sock patterns, and especially since you said it'd be for practice, it would definitely be okay. I'm not sure whether you use size 2 needles for the sport weight socks, though...
Sock yarn is definitely the best choice as you already know, and I can't imagine I'd love acrylic socks because they wouldn't be very absorbent or breathable. And I've not felt this yarn in particular but I know that Red Hearts I've used tend to be very scratchy and just...
acrylic feeling. However, if you're using it to practice and learn basic sock construction, by all means go ahead. Sorry - I haven't used this specific yarn or made socks using sport weight, but there's my input, nonetheless.