I | II | ||
[A] | Calcination | (1) | \[2C{{u}_{2}}S\,+\,3{{O}_{2}}\,\,\to \]\[\,\,2C{{u}_{2}}O\,+\,2S{{O}_{2}}\] |
[B] | Roasting | (2) | \[F{{e}_{2}}{{O}_{3}}.n{{H}_{2}}O\,\,\to \] \[F{{e}_{2}}{{O}_{3}}+n{{H}_{2}}O\,\,\] |
[C] | Flux | (3) | \[C{{r}_{2}}{{O}_{3}}+2Al\,\,\to \,\,\]\[A{{l}_{2}}{{O}_{3}}+2Cr\] |
[D] | Thermite | (4) | \[Si{{O}_{2}}+\,FeO\,\to \,FeSi{{O}_{3}}\] |
A) A - 1 B - 2 C - 3 D - 4
B) A - 2 B - 1 C - 4 D - 3
C) A - 4 B - 1 C - 2 D - 3
D) A - 3 B - 1 C - 2 D - 4
Correct Answer: B
Solution :
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