Match the scientists given in List-$I$ with their discoveries given in List-$II$.

List-$I$	List-$II$
$(1)$ Kossel and Lewis	$(A)$ $VSEPR$
$(2)$ Langmuir	$(B)$ Molecular Orbital Theory
$(3)$ Sidgwick and Powell	$(C)$ Covalent Bond
$(4)$ Heitler and London	$(D)$ Octet Rule
$(5)$ $F$. Hund and Mulliken	$(E)$ Valence Bond Theory

(D) The correct matches are:
$(1)$ Kossel and Lewis proposed the $(D)$ Octet Rule.
$(2)$ Langmuir introduced the concept of $(C)$ Covalent Bond.
$(3)$ Sidgwick and Powell proposed the $(A)$ $VSEPR$ theory.
$(4)$ Heitler and London proposed the $(E)$ Valence Bond Theory.
$(5)$ $F$. Hund and Mulliken proposed the $(B)$ Molecular Orbital Theory.
Thus,the correct sequence is $(1-D, 2-C, 3-A, 4-E, 5-B)$.