Answer:
carborane
Explanation:
Carborane acid is the strongest acid in the word. It is minimum 1 million times stronger or harder than 100% sulfuric acid with respect to Hammett acid feature
The pH value of the carborane is -18. Plus it is noncorrosive as it would be handled with bare skin
Therefore in the given case, the carborane is the strongest acid among all available ones
