Question

when hydrogen sulphide gas is passed through a blue solution of copper sulphate the colour of the solution phase and a black precipitate is obtained
(a) name the type of reaction mentioned above
(b) why does the colour of the solution fade away
(c) write the chemical name of the black precipitate formed
(d) give the balanced chemical equation for the reaction involved​

Answer 1

Answer:

(a)Double displacement is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

(a) H2 S+CuSO  4  →CuS+H2 SO4

​

Explanation:

Answer 2

When hydrogen sulphide gas is passed through a blue solution of copper sulphate, h2so4 and cus is formed.

Explanation:

• a) The type of the reaction is the double displacement reaction where the anions and cations of the reacting compounds will switch over to each other in order to yield the new compounds.
• b) The color of the solution fades away due to the formation of the sulphuric acid.
• c) The chemical name of the black precipitate is copper sulphide.
• d) h2s + cuso4- Cus +H2so4.

To know more:

1) Give description about hydrogen sulphide gas

https://brainly.in/question/10182938.

2) Write 2 properties of hydrogen sulphide gas

https://brainly.in/question/5397559