Explain the methods to prepare carbon dioxide. - Vidyadip

Question

Explain the methods to prepare carbon dioxide.

✓

Answer

1. On industrial scale it is produced by burning coke in excess of air.
$\underset{(\text { Coke })}{ C }+ O _2 \rightarrow CO _2$
2. Calcination of lime produces carbon dioxide as by product.
$CaCO _3 \underset{\rightarrow}{\triangle} CaO + CO _2$
3. Carbon dioxide is prepared in laboratory by the action of dilute hydrochloric acid on metal carbonates.
$CaCO _2+2 HCl \rightarrow CaCl _2+ H _2 O + CO _2$

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