The gas evolved is hydrogen. Zinc is more reactive than hydrogen and hence when sulphuric acid is added to zinc , formation of zinc sulphate starts and hydrogen starts
evolving. The reaction is :-
Zn + H2SO4 --------> ZnSO4 + H2
When dilute sulfuric acid is added to zinc, zinc reacts with sulfuric acid to form zinc sulfate, hydrogen gas, and water. The balanced chemical equation for this reaction is: Zn + H2SO4 -> ZnSO4 + H2.
When dilute nitric acid is added to zinc, the gas evolved is nitrogen dioxide (NO2) along with water and zinc nitrate.
When dilute sulfuric acid is added to zinc, a chemical reaction occurs in which zinc reacts with the sulfuric acid to form zinc sulfate and hydrogen gas. The hydrogen gas is released as bubbles, and the zinc sulfate remains dissolved in the solution.
The most fizzing will come from the concentrated sulfuric acid, then dilute sulfuric acid, then the acetic acid.The amount of fizzing is due to the concentration of H+ in the solution, and concentrated sulfuric acid has the most H+ in solution. The dilute sulfuric acid has less (because it is dilute) and the acetic acid solution has the least of all because it is a weak acid rather than a strong acid.See the Related Questions for more information.
Zn + H2SO4 --> ZnSO4 + H2Zinc + Sulfuric acid --> Zinc Sulfate + Hydrogen
When dilute sulfuric acid is added to zinc, zinc reacts with sulfuric acid to form zinc sulfate, hydrogen gas, and water. The balanced chemical equation for this reaction is: Zn + H2SO4 -> ZnSO4 + H2.
When dilute nitric acid is added to zinc, the gas evolved is nitrogen dioxide (NO2) along with water and zinc nitrate.
When dilute sulfuric acid is added to zinc, a chemical reaction occurs in which zinc reacts with the sulfuric acid to form zinc sulfate and hydrogen gas. The hydrogen gas is released as bubbles, and the zinc sulfate remains dissolved in the solution.
hydrogen gas evolved
Zn + H2SO4 --> ZnSO4 + H2Zinc + Sulfuric acid --> Zinc Sulfate + Hydrogen
The most fizzing will come from the concentrated sulfuric acid, then dilute sulfuric acid, then the acetic acid.The amount of fizzing is due to the concentration of H+ in the solution, and concentrated sulfuric acid has the most H+ in solution. The dilute sulfuric acid has less (because it is dilute) and the acetic acid solution has the least of all because it is a weak acid rather than a strong acid.See the Related Questions for more information.
When zinc is added to dilute sulfuric acid in a test tube, a chemical reaction occurs where zinc reacts with sulfuric acid to form zinc sulfate and hydrogen gas. This reaction is a redox reaction where zinc is oxidized to zinc ions, while hydrogen ions in the sulfuric acid are reduced to form hydrogen gas. The production of hydrogen gas can be observed as bubbles forming in the test tube.
When sulphuric acid is added to zinc granules , the gas produced is hydrogen gas. Zinc displaces hydrogen from sulphuric acid.
coz when we dilute zinc granules are reacted with dilute HCl (hydrochloric acid), zinc chloride i.e. ZnCl2 is formed along with the evolution of hydrogen gas H2. the presence of hydrogen gas can be tested by bringing a naked flame to the mouth of the test tube. Hydrogen gas burns with a pop sound.
zn + so4 - znso4
Zinc is a metal that reacts with dilute sulfuric acid to produce hydrogen gas.
When zinc granules are added to dilute sulfuric acid, a chemical reaction occurs where the zinc reacts with the sulfuric acid to produce zinc sulfate and hydrogen gas. This reaction also generates heat, so the mixture may get warm. Additionally, bubbles of hydrogen gas can be seen as they are released from the solution.