In a realistic novel, the society is the chief concern. Realism usually presents slice of life stories that when further analyzed can be examined for societal norms and behavior and criticism of that time.
The second one is grammatically correct
It is called the diction.
Angst, in writing, is like a dark story. One that has a sad, dark, etc. plot to it. On the other hand, tone is how a writer feel towards a topic.
My answer is maybe a noun? I'm not sure
