Give the preparation of carbon dioxide.

Explanation

Carbon dioxide can be prepared by following methods :
(i) By compelete combustion of carbon in the presence of air or oxygen.
`C(s) + O_(2)(g) overset(Delta) to CO_(2)(g)`
(ii) By combustion of carbon containing fuels in excess of air.
`CH_(4)(g) +2O_(g) overset(Delta) to CO_(2) (g) + 2H_(2)O(g)` .