The $IUPAC$ name of the complex $Hg[Co(CNS)_4]$ is

Which formula represents the coordination compound triamminediaquacobalt $(III)$ chloride?

In the coordination compound $K_4[Ni(CN)_4]$,the oxidation state of nickel is:

$IUPAC$ name of the complex $K_3[Al(C_2O_4)_3]$ is:

Identify true and false statements:
$(a)$ In the reaction $F_2 + O_2 \to O_2F_2$,oxygen is an oxidising agent.
$(b)$ Among $HClO, HClO_2, HClO_3$ and $HClO_4$,$HClO_2$ is the strongest acid.
$(c)$ Oxidation state of Nickel in $[Ni(CO)_4]$ is zero.
$(d)$ The reaction $BaO_2 + H_2SO_4 \to BaSO_4 + H_2O_2$ is a redox reaction.
The correct order of truth values is:

Which of the following compounds has an oxidation state of $+3$ for iron?