When Hydrogen Sulphide Gas is Passed Through a Blue Solution of Copper Sulphate, a Black Precipitate of Copper Sulphide is Obtained and the Sulphuric Acid - Science

Advertisement Remove all ads
MCQ

Choose the correct option from given alternative: 
When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained and the sulphuric acid so formed remains in the solution. The reaction is an example of a:

Options

  • Combination reaction

  • Displacement reaction

  • Decomposition reaction

  • Double displacement reaction

Advertisement Remove all ads

Solution

In the case of a double displacement reaction, two reactants exchange their ions and form new products.

\[\ce{\underset{\text{Hydrogen sulphide}}{H2S(g)}+\underset{\text{Copper sulphate}}{CuSO4(aq)}->\underset{\text{Copper sulphide,black ppt}}{CuS(s)}+\underset{\text{Sulphuric acid}}{H2SO4(aq)}}\]

This reaction is an example of a double displacement reaction.

Hence, the correct answer is Double displacement reaction.

  Is there an error in this question or solution?
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×