Question

2. Dilute nitric acid is added to excess green solid. Effervescence occurs and a blue solution is formed. When excess ammonia solution is added to a sample of the solution, a deep-blue solution is formed. (a) Identify the anion and cation in the green solid. (b) Write an ionic equation for the reaction leading to formation of the deep-blue solution

Answer 1

Answer:

Green solid is Copper(ii)Carbonate

When added to dilute nitric acid it reacts to form copper(ii) nitrate(blue) and carbon (iv) oxide and water which is blue in colour more addition of acid results in a deep blue complex copper ion

Cations- positively charged ions in a compound

Anions- negatively charged ions in a compound

Compound- in this case is Copper (ii) carbonate(CuCO3) Has two parts Cu+(cation) and a radical CO3^2-(anion)

Explanation:

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