Easy
The modern method for the manufacture of steel is:
- ABessemer process
- BSiemens-Martin's open hearth process
- CDuplex method
- D$L$.$D$. process
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Assertion : Copper obtained after $Bessemerization$ is known as blister copper.
Reason : Blisters are produced on the surface of the metal due to escaping of dissolved $SO_2$.
Reason : Blisters are produced on the surface of the metal due to escaping of dissolved $SO_2$.
DifficultAIIMS 2013
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