(a) Write one chemical reaction to show that conc. `H_2SO_4` can be an oxidising agent.
(b) Write the structural formula for `XeO_3` and `PF_5`
(c) Complete the following chemical equations :
`NaClO_3 (aq) + SO_2 (g) to `

Explanation

(a) Concentrated` H_2SO_4` oxidises copper
`Cu + 2H_2SO_4 to CuSO_4 + SO_2 + 2H_2O`
(b) Structural formula:

(c ) `2NaClO_3 (aq) + SO_2 (g) to 2ClO_2(g) + Na_2SO_4 (aq)`