What type of hybridization is exhibited by $[CoF_6]^{3-}$?

In $[NiCl_4]^{2-}$,the number of unpaired electrons is

What type of hybridization is present in $[Co(NH_3)_6]^{3+}$ complex?

For $K_3[Co(CN)_6]$,which of the following statements is not correct?

Addition of excess potassium iodide solution to a solution of mercuric chloride gives the halide complex

Consider the reaction $K_2[Ni(CN)_4] + 4K + 4NH_3 \to A$ (complex $A$).
Complex $A$ gives five ions in aqueous solution. Choose the $CORRECT$ statements.