Question

what is the colour of lead nitrate and potassium iodide in activity 1.2 class 10 ncert

Answer 1

Answer:

The lead nitrate solution contains particles (ions) of lead, and the potassium iodide solution contains particles of iodide. When the solutions mix, the lead particles and iodide particles combine and create two new compounds, a yellow solid called lead iodide and a white solid called potassium nitrate.

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Answer 2

Answer:

Brief procedure: Activity 1.2 asks us to mix an aqueous solution of lead nitrate with potassium iodide to check what happens.

Observation: A yellow colour precipitate appears at the bottom.

Explanation: Lead nitrate and potassium iodide; both are colourless. They react with each other to form a yellow precipitate of lead iodide. Lead iodide settles down at the bottom of the tube.

Pb(NO3)2(aq)+ 2KI(aq) → PbI2(s) + 2KNO3(aq)

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