What happens when lead nitrate is heated and what is the colour of the nitrogen dioxide gas . Give equation?
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Explanation:
(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.Pb(NO3)2 + heat → 2PbO + 4NO2 + O2
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