According to Dalton's atomic theory,which other laws are explained by the atomic theory?

$1.0 \ g$ of an oxide of $A$ contained $0.5 \ g$ of $A$. $4.0 \ g$ of another oxide of $A$ contained $1.6 \ g$ of $A$. The data indicate the law of:

Which of the following pairs of substances illustrates the Law of Multiple Proportions?

$45.4 \ L$ of dinitrogen reacts with $22.7 \ L$ of dioxygen to form $45.4 \ L$ of nitrous oxide. For the reaction $2N_{2(g)} + O_{2(g)} \to 2N_2O_{(g)}$,identify the law followed and state the law.

Match the laws given in List-$A$ with the scientists who discovered them in List-$B$.

List-$A$	List-$B$
$(1)$ Law of Multiple Proportions	$(A)$ Dalton
$(2)$ Law of Conservation of Mass	$(B)$ Joseph Proust
$(3)$ Law of Definite Proportions	$(C)$ Lavoisier
	$(D)$ Hofmann

Which of the following pairs of substances illustrate the law of multiple proportions?