$EDTA$ has a denticity of:

Identify the tetradentate ligand from the following.

The bonds in $K_4[Fe(CN)_6]$ are:

In the complex $[Co(NH_3)_6]^{3+}$,which species act as a Lewis acid and a Lewis base,respectively?

The number of precipitable halide ions in the sample $[Pt(NH_3)Cl_2Br]Cl$ will be

Give the chemical formulas for the following:
$(i)$ Sodium nitroprusside
$(ii)$ The purple solution formed in the test for sulphur
$(iii)$ Sodium hexacyanoferrate $(II)$
$(iv)$ Iron $(III)$ hexacyanoferrate $(II)$
$(v)$ Ferri-ferrocyanide
$(vi)$ Sodium thiocyanate