State whether the following statements are true or false:
$(i)$ The first periodic table was proposed by Dobereiner.
$(ii)$ The law of octaves was proposed by Newlands in $1865$.
$(iii)$ Mendeleev was the first to propose the periodic law.
$(iv)$ Mendeleev named Eka-aluminium as Germanium and Eka-silicon as Gallium.

(N/A) $(i)$ False: The first periodic table was proposed by Mendeleev,while Dobereiner proposed the law of triads.
$(ii)$ True: John Newlands proposed the law of octaves in $1865$.
$(iii)$ True: Dmitri Mendeleev is credited with formulating the periodic law based on atomic mass.
$(iv)$ False: Mendeleev named Eka-aluminium as Gallium and Eka-silicon as Germanium.