Which of the following statements is true?

- Acid strength of oxyacids increases with the oxidation state of the central atom.In ${\text{HNO}}_3$, N is $+5$. In ${\text{HNO}}_2$, N is $+3$. Thus ${\text{HNO}}_3>{\text{HNO}}_2$.Similarly, ${\text{HClO}}_4$ ($+7$) is stronger than ${\text{HClO}}_3$ ($+5$).$\text{HCl}$ is a stronger acid than $\text{HF}$ (due to lower bond dissociation enthalpy).