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oxidation state of +2 or +1, which is higher than its group number of +1. This is due to the presence of partially filled d-orbitals in its electron configuration, allowing for different oxidation states. Rate this question: Y | 22. What is the name of the element or compound used in getting pure drinking water in desert locations? . A.Cobalt ' B. Vanadium pentoxide R C. Nickel | D. Copper(ll) sulphate ‘ E. Titanium dioxide ' F. Titanium dioxide Correct Answer D. Copper(ll) sulphate Explanation Copper(ll) sulphate is used in getting pure drinking water in desert locations. It acts as a disinfectant and helps in killing harmful bacteria and algae in water. Copper(ll) sulphate also aids a2l A i - Big Banks in Don’t Like It When Canadians e ?.’! & Discover This Payout OPEN d = 3 A ) newvisioncanada.con