Statement-I: – It is impossible to write the structure of a cyclic organic compound containing only 10 carbon atoms.Statement-II: – It is impossible to write the structure of an acyclic organic compound without a 10 carbon atom

In a cyclic compound each carbon atom is attached to two other (or) three other (or) four other carbon atoms directly. So it is not possible to write the structure of cyclic compound only with 10  carbon atoms.  The terminal carbons in an open chain structure are always primary carbon atoms