Question
Why is an iron grill painted frequently?
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$\text{HNO}_3\ +\ \text{Ca(OH)}_2\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{Ca(NO}_3)_2+\text{H}_2\text{O}$
$\text{CH}_3\text{CH}_2\text{OH}\xrightarrow[\ \ \ \text{Heat}\ \ \ ]{\text{Alk. KMnO}_4}\text{CH}_3\text{COOH}$