ICSE 1997 : SCIENCE Paper 2 (Chemistry) - Question 5(a) Answer the following.

SCIENCE
Paper 2 (Chemistry) - 1997
(One hour and a half)

Question 5
(a) The following substances are put into the blast furnace when manufacturing Iron: Iron ore, coke, limestone and hot air.

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1.
(i) What is the name of the most common ore of iron and what is its chemical formula?

2.
(ii) What is the purpose of using (1) the coke; (2) the limestone?

3.
(iii) Write the equation for the reduction reaction which produces iron.

4.
(iv) Name the two substances which separate at the bottom of the blast furnace.

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