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UPSC 1998 · Q106 · Science & Technology › Materials & Engineering · Save

Consider the following statements: Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. Its function is to I. Act as a reducing agent. II. Remove silica associated with the iron ore. III. Function as fuel, to supply heat. IV. Act as an oxidizing agent. Of these statements:

(a) I and II are correct
(b) II and IV are correct
(c) I and III are correct
(d) III and IV are correct
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Answer: (c) I and III are correct