6) The mineral, whose formula is Nis (AsO4) 2 8H20, can be classified as a/n) : (a) arsenide (b) sulfate (c) arsenite (d) nitrate (e) arsenate

(e) arsenate

Explanation:

Arsenate -

arsenate are the chemical compound, that contains the arsenate ion, of formula, AsO₄³⁻. The valency of the the arsenic atom in the ion is 5, and has a pentavalent structure.

From the given compound in the question, the compound have an arsenate ion, hence it belongs to the Arsenate family.