I think it’s (D) pressure
As the temperature is lowered matter is more likely to exist in the solid state
I do not understand your question, what is the question, name what??
Answer:
First of all, it's KNO₃ not KNO.
Second, KNO₃ is neither an acid nor it is a base, infact, it is a salt and therefore it's neutral.
hope that helps...
