1.

Which of the following reaction is endothermic reaction ?

Answer»

`CaCO_(3) to CaO+ CO_(2)`
`Fe+ S to FeS`
`NaOH + HCI to NaCI + H_(2) O`
`CH_(4) + 2O_(2) to CO_(2) +2H_(2) O`

Solution :Decomposition reaction is always ENDOTHERMIC reaction.


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