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The flowchart below shows some of the processes involved in large scale production of sulphuric (IV)
acid. Use it to answer the questions that follow.
(a)Describe how oxygen is obtained from air on a large scale.
(b) (i) Name substance A.
(ii)Write an equation for the process that takes place in the absorption chamber.
(c) Vanadium (V) oxide is a commonly used catalyst in the contact process.
(i)Name another catalyst which can be used for this process.
(ii)Give two reasons why vanadium (V) oxide is the commonly used catalyst.
(d) State and explain the observations made when concentrated sulphuric (VI