Studying Japanese on my own, I've learned that in order to make a question, you usually add the particle "~か", like this:
It's also true that a question can be asked without it, using the rising tone of voice.
But then I found out that in certain contexts, the use of "~か" can be seen as sarcastic. My questions are:
- Is this actually true?
- And how do we decide when to choose which alternative?
Reference sites are appreciated.