Match the items of Column I with items of Column II and assign the correct code.

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A - 2 ; B - 3 ; C - 4 ; D - 1

A - 1 ; B - 2 ; C - 3 ; D - 5

A - 5 ; B - 4 ; C - 3 ; D - 2

A - 4 ; B - 5 ; C - 3 ; D - 2

answer is A.

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Detailed Solution

A - 2 ; B - 3 ; C - 4 ; D - 1A. Blistered Cu can be prepared by means of following chemical reaction 2Cu2O+Cu2S⟶6Cu+SO2B. Iron is extracted by using blast furnace.C. In reverberatory furnace formation of slag occurs as FeO+SiO2⟶FeSiO3 SlagD. Hall - Heroult process is used for extraction of aluminium.

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