1.

State the kind of chemical reactions in the following examples: (i) Digestion of food in stomach (ii) Combustion of coal in air (iii) Heating of limestone.

Answer»

Solution :(i) DECOMPOSITION REACTION and Exothermic reaction
`C_(6)H_(12)O_(6)+6O_(2)rarr6CO_(2)+6H_(2)O+`Energy
(ii) COMBINATION reaction
`C+CO_(2)rarrCO_(2)`
(iii) Decomposition reaction
`CaCO_(3)(S) overset ("Heat")rarrCaO(S)+CO_(2)(g)`


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