Question

when you mix solution of lead nitrate and potassium ioidide write its colour of precipates that were formed during that time name the compound involved write the balanced eqation

Answer 1

Hi there !!

Lead nitrate = Pb[NO]₂ 
Potassium Iodide = KI

When Lead Nitrate and Potassium Iodide are mixed we get Potassium Nitrate and  an insoluble solid  [ precipitate ] lead iodide. 



Colour of the precipitate formed is Yellow [ Lead Iodide ]


KI + Pb[NO₃]₂ -----> KNO₃ + PbI₂ 
-----> UNBALANCED EQUATION

2Kl+ Pb[NO₃]₂ -----> 2KNO₃ + PbI₂
----> BALANCED EQUATION

This is an example of double displacement reaction.

Also , as yellow precipitate is formed , this is also an example of precipitation reaction