give a reaction in which sulphuric acid acts as a dehydrating agent
conc.H2SO4
CH3CH2OH → H2C=CH2 +H2O
443K
Describe the reactions that show (i) Concentrated sulphuric acid is a non-volatile acid. (ii) Concentrated sulphuric acid acts as a dehydrating agent. (iii) Concentrated sulphuric acid is an oxidising agent. (iv) Dilute sulphuric acid behaves as dibasic acid.