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ALLEN-METALLURGY-EXERCISE-02
- Auto-reduction process is used for the extraction of :
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- When Alumina is electrolysed in presence of cryolite, the gas liberate...
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- In the extraction of copper, metal is formed in the Bessemer converter...
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- x,y and z in the following processes are respectively (i) P(2)O(5) +...
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- Which of the following processes involves smelting
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- Out of the following which ores are calcinated during extraction (a)...
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- Which of the following match are incorrect
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- Malachite on calcination gives rarr 'A' + CO(2) +H(2)O. Compound 'A'...
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- Which of the following ores are calcinared during extraction
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- Which process of purification is represented by the following reaction...
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- Which are correctly is matched
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- Which of the following reactions is not involved in serpeck's process ...
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- Impure Ni + 4CO overset(60-80^(@)C)to Ni(CO)(4)overset(180^(@)C)to Ni+...
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- Neutral refractory material used in furnaces is :
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- Carbon cannot be used in the reduction of Al(2)O(3) because :
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- From the following flowsheet for the extraction of pure metal, answer ...
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- Of the following reduction processes, correct processes are :
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- Consider the following steps: Cu(2)S overset("roast in air")rarr A o...
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- Main source of lead is galena (PbS). It is converted to Pb by : S...
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- Ag(2)S + NaCN rarr (A),(A) + Zn rarr (B) (B) is a metal. Hence, (A) ...
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