The colour of lead iodide is

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Crimson

Blue

Yellow

Red

answer is C.

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Detailed Solution

The color of lead iodide (PbI₂) is bright yellow. It is a crystalline solid that is commonly formed as a precipitate in chemical reactions.

Lead iodide is typically produced when a solution of lead nitrate (Pb(NO₃)₂) reacts with potassium iodide (KI) in a double displacement reaction: Pb(NO3)2(aq)+2KI(aq)→PbI2(s)+2KNO3(aq)Pb(NO₃)₂ (aq) + 2KI (aq) \rightarrow PbI₂ (s) + 2KNO₃ (aq)Pb(NO3)2(aq)+2KI(aq)→PbI2(s)+2KNO3(aq)
The insoluble PbI₂ forms as a bright yellow precipitate, while potassium nitrate remains in the solution.

Property	Details
Color	Bright yellow
State	Crystalline solid
Solubility	Slightly soluble in water
Use in Demonstrations	Known for its "golden rain" experiment, where recrystallization in hot water forms shiny golden flakes.

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