Which of the following elements would produce coloured ion in aqueous solution? by Sunday | Dec 10 | Chemistry WAEC | 0 comments A. Calcuim B. Copper C. Magnesuim D. Sodium Correct Answer: Option B B. Copper Users Also Read These:What would be observed when aqueous ammonia is added…When ammonia and hydrogen ion bond together to form…The atoms of four elements are represented as 20Q,…The ion that will give a white precipitate with…The bond formed when ammonia reacts with hydrogen…