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Isolation of Elements question

2022 · Shift 2 · Q12
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Isolation of Elements question

2022 · Shift 2 · Q12

JEE AdvancedChemistryIsolation of ElementsMultiple correct+4 / −2
The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range 900−1500 K900-1500 \mathrm{~K}900−1500 K is(are)
  1. A
    Limestone is used to remove silicate impurity.
  2. B
    Pig iron obtained from blast furnace contains about 4%4 \%4% carbon.
  3. C
    Coke (C) converts CO2\mathrm{CO}_{2}CO2​ to CO\mathrm{CO}CO.
  4. D
    Exhaust gases consist of NO2\mathrm{NO}_{2}NO2​ and CO\mathrm{CO}CO.
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