List the Coffman's conditions that lead to a Deadlock ?

There are the 4 conditions which if occured together then only the system would be in Deadlocked condition, these are:

Ø Mutual Exclusion: Only one process may use a critical resource at a  time.
Ø Hold & Wait: A process may be allocated some resources while waiting for others.
Ø No Pre-emption: No resource can be forcible removed from a process holding it.

Ø Circular Wait: A closed chain of processes exist such that each process holds at least one resource needed by another process in the chain.