Question

Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?

• A. $MgS{O}_4+Fe$
  
• B. $ZnS{O}_4+Fe$
  
• C. $MgS{O}_4+Pb$
  
• D. $CuS{O}_4+Fe$
  

Answer 1

The correct option is D $CuS{O}_4+Fe$

$Fe+CuS{O}_4\left(aq\right)\to FeS{O}_4\left(aq\right)+Cu\left(s\right)$In this reaction, the highly reactive metal iron replaces the Copper in copper sulphate by giving up two electrons and gets oxidized and forms a new compound called ferrous sulphate.