1
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
In the extraction of iron, the reaction which occurs at $900-1500 \mathrm{~K}$ in the blast furnace is
A
$\mathrm{Fe}_2 \mathrm{O}_3+3 \mathrm{C} \longrightarrow 2 \mathrm{Fe}+3 \mathrm{CO}$
B
$\mathrm{FeO}+\mathrm{CO} \longrightarrow \mathrm{Fe}+\mathrm{CO}_2$
C
$3 \mathrm{Fe}_2 \mathrm{O}_3+\mathrm{CO} \longrightarrow 2 \mathrm{Fe}_3 \mathrm{O}_4+\mathrm{CO}_2$
D
$\mathrm{Fe}_3 \mathrm{O}_4+4 \mathrm{CO} \longrightarrow 3 \mathrm{Fe}+4 \mathrm{CO}_2$
2
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In which of the following metals extraction, impurities are removed as slag?

i. Al

ii. Fe

iii. Cu

iv. Zn

The correct option is

A
i, ii, iv only
B
i, ii only
C
ii, iii only
D
ii, iii, iv only
3
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The flux used in the preparation of wrought iron from cast iron in reverberatory furnace is
A
$\mathrm{SiO}_2$
B
$\mathrm{CaCO}_3$
C
C
D
NaCN
4
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The type of iron obtained from blast furnace in the extraction of iron is
A
wrought iron
B
pig iron
C
cast iron
D
steel
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