The ratio of the number of cations,anions,and water molecules respectively in potash alum is:

Which of the following compounds contains both complex cations and complex anions?

Identify the tetradentate ligand from the following.

$A$ coordination complex compound of cobalt has a molecular formula containing five ammonia molecules,one nitro group,and two chlorine atoms for one cobalt atom. One mole of this compound produces three moles of ions in an aqueous solution,and upon reacting with an excess of $AgNO_3$,it forms $AgCl$ precipitate. The ionic formula for this complex would be:

The coordination number and oxidation state of $Cr$ in $K_3[Cr(C_2O_4)_3]$ are,respectively:

$[NiCl_4]^{2-}$ and $[Ni(CN)_4]^{2-}$ show similarity in