Give an example of a decomposition reaction . Describe an activity to illustrate such a reaction by heating.
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Example of a decomposition reaction: When lead nitrate is heated in a test tube it forms lead oxide nitrogen dioxide and oxygen. Activity: Take lead nitrate powder which iswhite incolour in a test tube. Heat this test tube over a flame. Observation: Brown fumes are evolved and brownish residue is left in the test tube.
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