What is the X-chromosome responsible for?
Here is the list! There are about 900 protein coding genes and about 500 non-coding transcribed sequences. It is not going to be feasible to explain you the function of every single one of those genes. Your question is hence too broad.

You will find here on wikipedia a small subset of those ~900 genes.

If your question was


  Are all genes that are on the X chromosome related to sex?


Then, the answer is "no". Most of them have nothing to do with gender specific traits.