When red lead is heated, following reaction takes place: Lead oxide and oxygen are formed as products. when lead oxide is heated it decomposed to produce pbo and oxygen gas.Click to see full answer. Subsequently, one may also ask, what happens when lead is heated?Lead (IV) oxide is thermally unstable and it tends to decompose into lead(II) oxide and oxygen upon heating. Whereas when lead(II) oxide is heated to around 450-480 °C, it forms lead(II,IV) oxide, also known as red lead or triplumbic tetroxide. If it is heated above 480 °C, reverse reaction will occur.Secondly, is Red Lead dangerous? Red lead is highly toxic, and utmost care should be used in handling the dry powder pigment to avoid inhaling the dust or ingesting the pigment in any form. Also asked, what happens when lead nitrate is heated? When the lead nitrate is heated up then the lead nitrate decomposes the heat, and the nitrogen oxide appears to be the brown fumes, and then the oxygen is produced, but when the leas nitrate is heated up then it decomposes to lead nitrogen oxide, lead mono oxide and the oxygen.What is the Colour change when lead tetroxide on heating is converted into lead monoxide?Lead Nitrate decomposes to Lead Monoxide which is yellow in colour.