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Subjects
Science State Board
Class 10
Periodic Classifications of elements
Metallurgy of Aluminium, Copper and Iron
12.
Spot the correct statement: Iron Occurrence
Exercise condition:
4
m.
Spot the error and choose the correct statements:
1.
Iron is the third most abundant metal after aluminium.
Iron is the second most abundant metal after aluminium.
Iron is the first most abundant metal after aluminium.
Iron is the second most abundant element after aluminium.
Iron is the second most abundant atom after aluminium.
2.
In the combustion zone, carbon monoxide reduces ferric oxide to form a relatively pure spongy iron.
In the redox zone, carbon monoxide reduces ferric oxide to form a relatively pure spongy iron.
In the reduction zone, carbon monoxide reduces ferric oxide to form a relatively pure spongy zinc.
In the reduction zone, carbon dioxide reduces ferric oxide to form a relatively pure spongy iron.
In the reduction zone, carbon monoxide reduces ferric oxide to form a relatively pure spongy iron.
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