Lead nitrate reacts with potassium iodide to form a yellow precipitate of .

{PbI}_{2}

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{KNO}_{3}

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{PbIO}_{3}

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Solution

The correct option is A ${PbI}_{2}$
The reaction between lead nitrate and potassium iodide is a type of precipitation and double displacement reaction. The lead nitrate $[{Pb(NO}_{3})_{2}]$ reacts with potassium iodide $(Kl)$ causing exchange of ions between the reactants leading to the formation of potassium nitrate $({KNO}_{3})$ and a yellow precipitate of lead iodide $({PbI}_{2})$ . The reaction involved is given below:

${Pb(NO}_{3})_{2} (aq) + 2 KI (aq) \to {PbI}_{2} (s) (↓) + 2 {KNO}_{3} (aq)$

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Similar questions

When lead nitrate reacts with potassium iodide, yellow precipitate of

What is the colour of precipitate formed when lead nitrate reacts with potassium iodide?

Q. Assertion: A lead nitrate on thermal decomposition gives lead oxide, brown coloured nitrogen dioxide and oxygen gas.
Reason: Lead nitrate reacts with potassium iodide to form yellow ppt of lead iodide and the reaction is double displacement as well as precipitation reaction.

Question 13

In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?

(a) Lead sulphate (insoluble)
(b) Lead acetate
(c) Ammonium nitrate
(d) Potassium sulphate

Q. The white coloured precipitate is formed on mixing potassium iodide solution with lead nitrate solution.

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