Question Detail The single acid which dissolves gold is ? Aqua regiaHydrochloric acidNitric acidSelenic acid Answer: Option A Ad Similar Questions : 1. The metal that is used as a catalyst in the hydrogenation of oils is ? PbNi Cu Pt Answer: Option B 2. What is metallurgy ? process of extracting metal in pure form from its ore.process of creating alloys of metals.process of making metals live long.None of above. Answer: Option A 3. Which metal is heaviest ? osmiummercuryironnickle Answer: Option A 4. Which element found in all organic compounds ? carbonnitrogencalciumnone of them Answer: Option A 5. Alloys made with mercury as one metal are called ? mixturesemulsionssoldersamalgams Answer: Option D Read more from - Chemistry Questions Answers