Write an equation in each case to show the action of sulphur dioxide as an acid anhydride

What property of conc. H_2SO_4 is made use of in each of the following cases ? Give an equation for the reaction in each case : in the preparation of sulphur dioxide by warming a mixture of conc. sulphuric acid and copper turnings.

Give one equation each to show the following properties of sulphuric acid: Acidic nature

Some bacteria obtain their energy by oxidising sulphur, producing sulphuric acid as a by-product. In the laboratory, or in industry, the first step in the conversion of sulphur to sulphuric acid is to produce sulphur dioxide. The sulphur dioxide is converted to sulphur trioxide, which reacts with water to give sulphuric acid. Write the equation for the conversion of sulphur dioxide to sulphur trioxide. Why does this reaction supply energy?

Give one equation each to show the following properties of sulphuric acid : (i) Dehydrating property. (ii) Acidic nature. (iii) As a non-volatile acid.

Give one equation each to show the following properties of sulphuric acid: Dehydrating property

Write the equation for the laboratory preparation of sulphur dioxide from sodium sulphite.

Write suitable chemical equations to show the nature of Calcium oxide and carbon dioxide

Write a balanced equation for the reaction of - sulphur and hot consentrated nitric acid.

Write the equations for the following reactions: Dilute sulphuric acid and barium chloride.

How is dihydrogen obtained from? Give one equation in each case : (A) Dilute sulphuric acid (B) sodium hydroxide (C) water