Question

Assertion: Aqueous solution of potassium iodide reacts with lead nitrate aqueous solution to form a red precipitate of PbI2 and potassium nitrate solution.
Reason: It is a double displacement reaction

Answer 1

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Answer 2

The assertion and the reason mentioned are correct because:

• When potassium iodide and lead nitrate react, it results in two other chemicals.
• These are lead iodide and potassium nitrate.
• A double displacement reaction occurs when one compound of the molecules reacting are interchanged to create the end products.
• As a result, the cations and anions of two varied compounds swap and hence, two totally different compounds are formed.
• Hence, the reaction of potassium iodide reacts with lead nitrate is a double displacement reaction.