Question

which acid is powerfull​

Answer 1

Answer:

I think so it is Hydrochloric Acid.

Answer 2

carborane acid

The world's strongest acid, at least a million times more potent than concentrated sulphuric acid, has been made in a lab in California. Perhaps confusingly, it is also one of the least corrosive. The compound, called a carborane acid, is the first 'superacid' that can be stored in a bottle, say its creators.