Chemistry - C4 - Sodium Hydroxide tests
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10 Terms
which ions produce a white precipitate when reacted with sodium hydroxide?
calcium
magnesium
aluminium (solution turns colourless if excess NaOH is present however)
which ion produces a blue precipitate when reacted with sodium hydroxide?
copper (III)
which ion produces a green precipitate when reacted with sodium hydroxide?
iron (II)
which ion produces a brown precipitate when reacted with sodium hydroxide?
iron (III)
what colour precipitate is formed when calcium ions are reacted with sodium hydroxide?
white
what colour precipitate is formed when copper (III) ions are reacted with sodium hydroxide?
blue
what colour precipitate is formed when iron (II) ions are reacted with sodium hydroxide?
green
what colour precipitate is formed when iron (III) ions are reacted with sodium hydroxide?
brown
what colour precipitate is formed when magnesium ions are reacted with sodium hydroxide?
white
what colour precipitate is formed when aluminium ions are reacted with sodium hydroxide?
white
if excess NaOH is added, solution will turn colourless as the aluminium hydroxide ions dissolve