What happens when magnesium reacts with dilute sulphuric acid?
Magnesium sulphate is formed
Dilute sulphuric acid reacts with metals, which are above hydrogen in the activity series to form metallic sulphate and hydrogen at ordinary temperature. So, magnesium reacts with dilute sulphuric acid to give magnesium sulphate and hydrogen gas.
Mg+H2SO4→MgSO4+H2↑