What happens when lactic acid is
(i) treated with dilute `H_(2)SO_(4)`
(ii) heated alone
(iii) oxidised with alkaline `KMnO_(4)`

What happens when formic acid is heated with Cone. H_(2)SO_(4) ? Give the equation.

What happens when ehtanol is heated with cone H_(2)SO_(4) ? Give equation.

When formic acid is heated with concentrated H_(2)SO_(4) , the gas evolved is

An oxide that gives hydrogen perioxide on treatment with dilute H_(2)SO_(4) is :

Nitrous acid reacts with H_(2)SO_(4) give

What happens when zinc granules are trated with dilute solutions of H_(2)SO_(4), HNO_(3), NaCl and NaOH ? Also write the chemical equation.