(a)(i) Describe briefly how trioxonitrate (V) ions could be tested for in the laboratory.

(ii) State two uses of each of the following compounds: I. sodium chloride; II. sodium trioxocarbonate (IV).

 

(b) Write balanced equations for the reactions involved in the extraction of iron in the blast furnace.

(ii) State Faraday's first law of electrolysis.

(iii) State two applications of electrolysis.

 

(c) Concentrated tetraoxosulphate (VI) acid is added to sugar crystals in a beaker. State what would be observed. Explain briefly your answer.

 

(d) Write an equation for the reaction of zinc powder with:

(i) dilute tetraoxosulphate (VI) acid;

(ii) concentrated tetraoxosulphate (VI) acid.

 

(e) What property of concentrated tetraoxosulphate (VI) acid is shown in (d)(ii)