WBCS.LIVE practice question

What happens when the potassium iodide solution is added to a solution of lead nitrate?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. White precipitation of lead iodide is formed.
  2. Yellow precipitation of lead iodide is formed.
  3. Red precipitation of lead iodide is formed.
  4. Black precipitation of lead iodide is formed.

Correct answer and explanation

Correct answer: Yellow precipitation of lead iodide is formed.

Explanation: āœ… Correct Answer: B) Yellow precipitation of lead iodide is formed. šŸ“š Explanation: When potassium iodide is added to a solution of lead nitrate, a chemical reaction occurs that creates an insoluble solid. This solid is called 'Lead Iodide' and it has a bright yellow color. The formation of this 'yellow' precipitate is a common classroom experiment to show how substances react. It is often used to demonstrate a double displacement reaction in chemistry.