Question

What you mix solutions of lead (11)nitrate and potassium iodide, 1.what is the colour of the precipitate formed?name the compound evolved? 2.write the balancedar chemical reaction? 3.is this a double displace mentioned reaction?

Answer 1

HELLO THERE!

Simple answer:

When lead nitrate reacts with potassium iodide, lead iodide and potassium nitrate is formed.

1) The precipitate formed is Lead Iodide, which is Yellow in colour.

2) Reaction: Pb(NO₃)₂ + 2KI -----> PbI₂ + 2KNO₃

3) Yup, this is a double displacement reaction or precipitation reaction. From two salt solutions we are getting a precipitate in which the anion gets exchanged and the rest of the product formed is also by exchange of anion.

2I⁻ ion goes to Pb²⁺, and 2NO₃⁻ ion goes to 2K⁺.

THANKS!