Laboratory Method : In laboratory, dihydrogen is usually prepared by the reaction of granulated Zinc with dilute sulphuric acid. In this method granulated Zinc is taken in Woulfs bottle and Sulphuric acid is mixed produced with the help of a funnel. And the gas formed is collected in gas jar by water downward dislacement method.
Zn + H2SO4 ➝ ZnSO4 + H2 ↑
