Question

give equation for decomposition of a metal nitrate which leaves a black residue on heating

Answer 1

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Answer 2

Answer:

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Explanation:

When lead(II) nitrate is heated, it breaks down into yellow colour lead (II) oxide, colourless gas of oxygen and brown colour nitrogen dioxide. The chemical equation for the above reaction is,

2Pb(NO₃)₂ → 2PbO + 4NO₂ + O₂