When identifiing a choral snake?

Assuming you meant 'Coral' snake - there are a few rhymes around to help you remember how to distinguish one from a banded king snake... Red touches yellow, kill a fellow - Red touches black, venom lack - is one example. With a king snake, the bands are in the order Red-black-yellow-black (this repeats along the length of the body) - while in coral snakes the order is red-yellow-black yellow