Which of the following statements is incorrect ?

CH₄ has highest bond angle
(1) ${\mathrm{CH}}_4\left({\log }^{\circ }{28}^{\mathrm{\prime }}\right)>{\mathrm{NH}}_3\left({107}^{\circ }{28}^{\mathrm{\prime }}\right)>{\mathrm{H}}_2\mathrm{O}:\left({104}^{\circ }\right)>{\mathrm{H}}_2\mathrm{S}\left(\approx {90}^{\circ }\right)$
(2) ${{\mathrm{O}}_2}^{+}\left(2.5\right)>{\mathrm{O}}_2\left(2\right)>{\mathrm{O}}_2^{-}\left(1.5\right)\cdot {{\mathrm{O}}_2}^{2-}\left(1\right)$
(3) Small size, more electronegativity, strength of H-bond is more.
$\mathrm{HF}>{\mathrm{H}}_2\mathrm{O}>{\mathrm{NH}}_3>\mathrm{HCl}$
(4) $:\ddot{O}=C=\ddot{O}:$(neutral, every atom follows $:\ddot{O}-\mathrm{C}\equiv \mathrm{O}:$ (charged species))