Complete the following word equation

a.       Zinc + lead nitrate solution

b.      Iron + zinc sulphate solution

c.       Lead + copper nitrate solution

d.      Magnesium + Silver nitrate solution

e.      Copper + potassium chloride solution

Dear student, 
Please find below the solution to the asked query:
a)Zinc + Lead nitrate $\to$ Zinc nitrate + Lead
 Zn + Pb(NO₃)₂ $\to$Zn(NO₃)₂ + Pb

​b)Iron + Zinc sulphate solution $\to$ No reaction
Iron lies below Zinc in the reactivity series and thus is unable to displace Zn from its solution. Hence, no reaction takes place.

​c)Lead + copper nitrate $\to$ Lead nitrate + Copper
Pb + Cu(NO₃)₂ $\to$ Pb(NO₃)₂ +Cu

d)Magnesium + silver nitrate $\to$ Magnesium nitrate + silver
Mg + 2AgNO₃$\to$ Mg(NO₃)₂ + 2Ag

​e)Copper + potassium chloride $\to$No reaction
Potassium lies above Copper in the reactivity series and hence Cu cannot displace potassium from its salts.

Regards