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Assertion : Limestone added in the blast...

Assertion : Limestone added in the blast furnace decomposes to give CaO which forms slag in molten state and separates out from iron.
Reason : The iron obtained from the blast furnace contains about 4% carbon and many impurities like S, P, Si, Mn, etc.

A

If both (A) and (R) are correct and (R) is the correct explanation of(A).

B

If both (A) and (R) are correct, but (R) is not the correct explanation of (A).

C

If (A) is correct, but (R) is incorrect.

D

If both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
B
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