Yes, it's grammatically correct. All the right elements are in all the right places.

Sounds ok

It's OK for a statement. It's not a question.

The sentence "On the other hand, the degree of 'dislike' goes in the reverse order" is understandable but could be phrased more clearly. Here's a refined version: “On the other hand, the level of 'dislike' increases in the opposite direction.” Alternatively, for even greater clarity: “On the other hand, the intensity of 'dislike' is ranked in reverse order.” This keeps the meaning intact while making the phrasing smoother and easier to understand.