Rinmann's green is: — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Heating a zinc salt with cobalt nitrate on a charcoal block produces a green mass composed of cobalt zincate. Step 2: The chemical formula of this mixed oxide is CoZnO2. Step 3: Rinmann's green is chemically cobalt zincate, CoZnO2, matching option (c).