The flow chart below illustrates two industrial processes. Study it and answer the questions that follow.

The flow chart below illustrates two industrial processes. Study it and answer the questions that follow.



(a) Name of the process by which air is separated into oxygen and nitrogen.

(b) Identify the substances which are represented by the letters.
A
B
C
D
E
F

(c) (i) Name the catalyst involved in the formation of A and E.

(ii) Explain the role of the catalysts named in (c) above.

(d) (i) Write the chemical equation for the reaction taking place in the absorption tower.

(ii) Why is it not advisable to use hard water to produce sulphuric acid?


(e) (i) What property of concentrated sulphuric acid makes it suitable for the preparation of nitric (v) acid and hydrogen chloride?


(ii) Write chemical equations for the reaction of zinc metal with dilute sulphuric acid and concentrated sulphuric acid.

Dilute sulphuric acid

Concentrated sulphuric acid

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(a) Fractional distillation

(b) A-Ammonia / NH₃

B- Ammonium sulphate/

C-Sulphur / S

D-Oxygen/O₂ or air

E-Sulphur (VI) oxide / SO₃

F-Conc. sulphuric (VI) acid/


(c) (i)
A- Finely divided iron , E- Vanadium (V) oxide or Platinum

(ii) The catalysts increases the reaction rate by lowering the activation energy of the reactants.


(d) (i)

(ii) Sulphuric acid reacts calcium in hard water to form calcium sulphate precipitates.



(e) (i) It is less volatile than nitric (v) acid and hydrochloric acids.

(ii)

Dilute sulphuric acid






Concentrated sulphuric acid

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maurice.mutuku answered the question on August 16, 2019 at 07:28

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