I Think OldCurmudgeon and StaxMan are the two right but Here's one sentence solution with simple illustration for you. Take note: Despite the fact that at this stage we are inclined to think about all metallic hydroxides as made up of hydroxide ions, it is in fact a simplification - https://propertyingurugram.in/residential/orris-atulyam-83-sector-83-gurgaon/