Which of the following reaction(s) occur in temperature range 500 — 800 K in blast furnace
(i) Fe2O3+CO2FeO+CO2

(ii) Fe3O4+4CO3Fe+4CO2

(iii) FeO+COFe+CO2

(iii) C+CO22CO

  1. A

    (i) and (ii)

  2. B

    (i), (ii) and iii) 

  3. C

    (ili) and (iv)

  4. D

    (iv) only 

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    Solution:

    (iii) and (iv) reactions occur in the temperature range of 900 — 1500K in blast furnace. 

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