1.

Differentiate between a combination reaction and a decompositionreaction. Write one chemical equation each for these reactions.

Answer»

Solution :The chemical reaction in which a single product is formed from TWO or more reactantsand energy is also evolved , is KNOWN as combination reaction.
Example : `2Mg+O_(2) overset ("Burn")rarr2MgO`
When a single reactant on gaining ENRGY decomposes to give two or more SIMPLER products, such a reaction is CALLED a decomposition reaction.
Example: `CaCO_(3) oversetDeltararrCaO+CO_(2)`


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