Wondering in C strings, NULL, white spaces

Question

In C, can I say a white space in a string has a NULL type, or something else?
In C, which character represents the termination of a string?

Answer 1

The null character (ASCII value 0, '\0' as a character literal) terminates a string in C. This character is not usually regarded as a whitespace character.

The space in the middle of this string for example: "Hello world" is the character with ASCII value 32. This is not the same as NULL or \0.