Ethylene diaminetetraacetate $(EDTA^{4-})$ ion is:

Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?

$A$ $200 \ mL$ solution $X$ contains $0.02 \ mol$ of $[Co(NH_3)_5Br]Cl_2$ and $0.02 \ mol$ of $[Co(NH_3)_5Cl]SO_4$. If solution $X$ is treated with excess $AgNO_3$ and excess $BaCl_2$,what will be the number of moles of precipitates $Y$ and $Z$ formed,respectively?

Explain the following term with an example: Hexadentate ligands.

Identify the non-ionisable octahedral complex among the following.

The formula of alum is