All of the Following Are True for Dissolving Inorganic Materials

Multiple Choice

All of the following are true for dissolving inorganic materials in acid,except:

A) metals with positive reduction potentials should dissolve in nonoxidizing acids such as HCl,HBr,HF,H₃PO₄,etc.
B) volatile species formed by protonation of anions such as carbonate will be lost from hot acids in open vessels.
C) volatile metal halides such as SnCl₄ and some metal oxides can be lost from hot acids in open vessels.
D) hot hydrofluoric acid dissolves silicates.
E) substances that do not dissolve in nonoxidizing acids may dissolve in oxidizing acids such as HNO₃,hot concentrated H₂SO₄,or hot concentrated HClO₄.