Black
When zinc granules are reacted with dilute HCl (hydrochloric acid), zinc chloride i.e. ZnCl2 is formed along with the evolution of hydrogen gas H2.
When dilute sulfuric acid is added to zinc granules, a displacement reaction takes place, resulting in the formation of zinc sulfate and hydrogen gas. This reaction is exothermic, which means it releases heat energy.
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.
When zinc granules react with hydrochloric acid, the zinc dissolves to form zinc chloride and releases hydrogen gas. The color change is not significant, and the zinc itself does not change in color during this reaction.
When sulphuric acid is added to zinc granules , the gas produced is hydrogen gas. Zinc displaces hydrogen from sulphuric acid.
When zinc granules are reacted with dilute HCl (hydrochloric acid), zinc chloride i.e. ZnCl2 is formed along with the evolution of hydrogen gas H2.
When dilute sulfuric acid is added to zinc granules, a displacement reaction takes place, resulting in the formation of zinc sulfate and hydrogen gas. This reaction is exothermic, which means it releases heat energy.
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.
When zinc granules react with hydrochloric acid, the zinc dissolves to form zinc chloride and releases hydrogen gas. The color change is not significant, and the zinc itself does not change in color during this reaction.
When sulphuric acid is added to zinc granules , the gas produced is hydrogen gas. Zinc displaces hydrogen from sulphuric acid.
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.
When zinc granules are placed in a copper sulfate solution, zinc will undergo a displacement reaction with copper, displacing copper ions in the solution. This reaction will result in the formation of zinc sulfate solution and solid copper. The blue color of the copper sulfate solution will fade as the reaction proceeds.
The coating formed on the zinc granules when zinc reacts with ferrous sulfate is black in color. It is due to the formation of ferrous sulfide as a result of the reaction.
When 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.
Granules are preferred over zinc strips for the reaction of zinc with hydrochloric acid because granules have a larger surface area, allowing for a faster reaction. The increased surface area of granules results in more zinc atoms being in contact with the hydrochloric acid, leading to a more efficient reaction. This results in a quicker production of hydrogen gas and zinc chloride.
They get converted to zinc sulfate
The color of the copper sulfate solution changes from blue to colorless when zinc granules are added to it. This is because zinc displaces copper in the solution through a chemical reaction, forming zinc sulfate and leaving the solution without copper ions responsible for its blue color.