Question 39
Metals and their CompoundsWhich of the following metals can be prepared in samples by the thermal decomposition of their trioxonitrate (V) salts?
- A.Copper and mercury
- B.Silver and copper
- C.Mercury and silver
- D.Magnesium and mercury
Show the answer and explanation
Answer: C (Mercury and silver)
Explanation
Nitrates of metals low in the activity series, such as mercury and silver, decompose all the way to the metal. Copper and magnesium nitrates leave the oxide.