What are the observations when lead nitrate is heated?

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Solution

Observations when lead nitrate is heated

1)On heating lead nitrate decomposes crackling sound.A Brown Gas,Nitrogen dioxide(NO2) evolves which has irritating smel.The gas turns blue Litmus red,hence Acidic in nature.

(2)A yellow Solid Residue of lead oxide(PbO)remains in the test tube.

(3)Glowing splint rekindles.

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State what do you observe when:

Lead nitrate and sodium chloride are mixed.

2 P b (N O_{3})_{2} \to 2 P b O + 4 N O_{2} + O_{2}

(P b = 207; N = 14; O = 16)

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