Question
Give reasons:
Conc. HNO3 can be transported in an aluminium container.
Solution
When concentrated HNO3 is taken in an aluminium container, aluminium is oxidised to aluminium oxide (Al2O3). It forms a protective coating on the surface of the aluminium metal and checks further attack by the acid.
Thus aluminium becomes positive and hence aluminium containers can be used to transport concentrated HNO3.
Thus aluminium becomes positive and hence aluminium containers can be used to transport concentrated HNO3.
