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General Principles and processes of Isolation of Elements
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The chemical process of manufacturing of steel from its ore haematite involves
Aoxidation
B reduction followed by oxidation
C oxidation followed by reduction
D oxidation followed by decomposition and reduction
Solution
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Standard 12
Chemistry
Similar Questions
Match Column $-I$ with Column $-II$
Column $-I$ | Column $-II$ |
$(P)$ Nitriding | $(I)$ Process of heating steel to redness and then cooling It very slowly |
$(Q)$ Annealing | $(II)$ Process of heating steel in presence of $NH_3$ and producing hard coating of Iron Nitride on the surface of steel |
$(R)$ Tempering | $(III)$ Process of heating steel to redness and then cooling it suddenly by plunging it into water or oil |
$(S)$ Quenching | $(IV)$ Process of heating quenched steel to a temperature well below redness and then cooling it slowly |
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