The primary difference between ‘no’ and ‘not’ relies mostly on the fact that no is commonly used as an interjection to imply that something is negative. Alternately, ‘not’ is primarily used as an adverb, i.e....

No means no, well to be exact it is a negative response to something, indicating that the person does not want to do what the person is indicating. Never’ indicates something that won’t ever happen, whereas ‘...