Which two compounds of zinc give zinc sulphate when they react with sulfuric acid?

Answer 1

?ZnCl2 + H2SO4 ---> ZnSO4 + 2HCl?

?Zn + H2SO4 ---> H2 + ZnSO4?

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I think the above answer is wrong, but I'm no expert just a student.

Firstly, it is not possible for Zn to be an answer because Zn is an element in itself. Note that the question said 'compounds' which means that it has to be bonded.

Secondly, although the first equation with ZnCl2 satisfies the question, it is not a base. It HAS to be a base, reactive metal, metal oxide, metal hydroxide or carbonate (which is also a base, though weak; same with acetate).

So if I had to give an answer, it would be to refer back to what I mentioned just now "base, reactive metal, metal oxide, metal hydroxide or other bases"

It would be zinc hydroxide, which is amphoteric meaning it can behave as an acid or a base. Half of the question is fulfilled, now let's try writing the equation

Zinc hydroxide, which is amphoteric:

Zn(OH)2 + H2SO4 -> ZnSO4 + 2H20

base/metal hydroxide +acid -> salt + water

Zinc oxide, which is also amphoteric:

ZnO + H2SO4 -> ZnSO4 + H2O

base/metal oxide -> salt + water

Zinc carbonate:

ZnCO3+H2SO4 ->ZnSO4+H2O+CO2

carbonate + acid -> salt + water + carbon dioxide