Question

A student has mixed the solutions of lead (II) nitrate and potassium iodide.
(i) What was the colour of the precipitate formed? Can you name the compound? precipitated ? (ii) Write the balanced chemical equation for this reaction. (iii) What type of reaction is it?

Answer 1

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formula of lead iodide is PbI2 and that of potassium nitrate is KNO3.

reaction is as follows-

Pb(NO3) + KI =KNO3 + PbI2

yes the precipitate is yellow in colour...

double displacement reaction

because when they are mixed,they exchange their ions...

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Answer 2

Hey !!!!!

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Lead (II) Nitrate : PbNO3

Potassium Oxide : KI

I) Colour of Precipitate : Yellow

II) Name of Precipitate : Lead Iodide

III) Equation : PbNO3 + KI -----> PbI2 (Precipitate)(Yellow) + KNO3

IV) It's a double displacement ----> Precipitation Reaction,as, Both of the ions are being exchanged

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Thanks...

Hope This Helps.....!!