In short, yes.
Your previous deportation would almost certainly guarantee that you would not be granted a non-immigrant visa, as it serves as evidence indicating that you'd be likely to:
- Work illegally while in the United States
- Attempt to change your status immediately after reaching the United States
- Any / All of the above leading to you not returning to your home country after traveling on a tourist or non-immigrant visa.
That's what they'll likely be the most concerned about, additional evidence that, if granted a non-immigrant visa, you'd be extremely likely to not return to your home country after your permitted stay concludes.
However, you're applying for an immigrant status visa, so the above is less of a concern. You're plainly stating that you have every intention of not returning, and working, once you reach the United States.
It's then a question of character, and perceived flaws in said character due to your history in another country.
This is one of those things where you'd probably want to enlist the help of an immigration attorney, because they know best how to plead your application, and yes - you will be asked to disclose this on paperwork you complete before the interview.
I'd definitely seek the help of a professional attorney (who might be able to accompany you to said interview, and counsel you, along with doing whatever can be done to settle this part of it prior to the interview).