The array subscript operator, , has a higher precedence than the pointer dereference operator, *. Therefore, the following snippet declares an array of 10 pointers to char, not a pointer to an array of 10 characters:
char * p2 ;
You can read the declaration as follows: because the array subscript has a higher precedence than the * operator, p2 is an array of 10 elements. The type of the elements is ‘pointer to char’ or char *. Now try to parse the following declaration:
char ** p3 ;
Here again, operator  has the highest precedence, therefore we know that p3 is an array with 10 elements. The type of the array’s elements is ‘pointer to pointer to char’ or char **.