Question

What is composition of golden spangles?

Answer 1

Explanation:

The golden rain experiment involves two soluble ionic compounds, potassium iodide (KI) and lead(II) nitrate (Pb(NO3)2). They are initially dissolved in separate water solutions, which are each colorless.

Answer 2

Answer:

The lead iodide so formed is insoluble and is formed as a bright yellow precipitate. When shaken slightly, the precipitate particles fall down in the solution like raindrops falling. Thus, this experiment is also known as the golden rain experiment. The golden spangles formed are thus, particles of lead iodide (PbI2).