MCQ
Complete the missing components/ variables given as x in the following reactions:
$\text{CaCO}_3(\text{s})\xrightarrow{\text{x}}\text{CaO}(\text{s})+\text{CO}_2(\text{g})$
- Ax = Heat
- Bx = Catalyst
- Cx = O2
- DNone of these
$\text{CaCO}_3(\text{s})\xrightarrow{\text{x}}\text{CaO}(\text{s})+\text{CO}_2(\text{g})$
Explanation:
Calcium carbonate on heating decomposes to form calcium oxide (quick lime) and carbon dioxide.
The equation for this thermal decomposition reaction can be written as:
$\text{CaCO}_3\xrightarrow{\text{heat}}\text{CaO}+\text{CO}_2$
Therefore, x in the above reaction is heat.
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