action of heat on hydrated lead nitrate
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Lead nitrate on heating decomposes to lead monoxide, nitrogen dioxide and oxygen. NO2 is liberated, along with oxygen, as a reddish brown gas. ... Nothing at all below 450°C, but if you crank that up a bit (to 470°C), it'll decompose - breaking down into nitrogen dioxide, lead (II) oxide and oxygen gas.
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Hey !
When lead nitrate (II) is heated, it decomposes to form yellow coloured compound lead oxide and releases nitrogen dioxide, which is visible as reddish brown fume along with oxygen.
The reaction is as under;-
2Pb(NO3)2-------→2PbO+4NO2+O2
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