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A student adds lead and silver to two different test tubes containing an equal amount of copper sulphate solution.

Q 1 | MCQ TYPE QUESTION


A student adds lead and silver to two different test tubes containing an equal amount of copper sulphate solution. The student observes that the color of the solution in the test tube with lead changes. What explains the change in the colour of the solution?


A.
A displacement reaction takes place as lead replaces copper from the solution.                        

B.
 A combination reaction takes place as lead combines with sulphate in the solution.
C.
 decomposition reaction takes place as copper dissociates from sulphate in the solution.      


D.
A double displacement reaction takes place as copper dissociates from sulphate and lead combines with sulphate in the solution.       


SOLUTION

Correct Answer: Option (A)

A displacement reaction takes place as lead replaces copper from the solution.


A student adds lead and silver to two different test tubes containing an equal amount of copper sulphate solution.

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