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Blister copper is refined by stirring mo...

Blister copper is refined by stirring moltem impure metal with green logs of wood because such a wood liberated hydrocarbon gases like `(CH_(4))`. The process X is called _____ and the Metal contains impurity of Y is ____:

A

X=cupellation Y=CuO_(2)`

B

X= poling `Y=Cu_(2)O`

C

X=poling `Y=CuO`

D

X=cupellation `Y=CuO`

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The correct Answer is:
B
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Blister copper is refined by stirring molten impure metal with green logs of wood because such a wood liberates hydrocarbon gases (like CH_4 ). This process X is called ________ and the metal contains impurities of Y is __________ .

Blister copper is refined by stirring molte impure metal with green logs of wood because such a wood liberates hydrogen gases (like CH_(4)) . This process X is called…..and the metal contains impurities of Y is…

During polling, heat of molten metal makes the green logs of wood to liberate __________.

Mark the correct statements. (i) Mercury can be refined by the process of distillation. (ii) In poling, the molten impure metal is stirred with green poles of wood. (iii) In electrolytic refining of metals , impure metal is made as cathode and a thin strip of pure metal is made as anode.

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  9. Which statement is wrong:-

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  10. CuSO(4) solution reacts with excess of KCN solution to form:-

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  11. In which of the following including metal at least 5 atoms are in a li...

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  12. Which of the following complexes exhibits the highest paramagnetic beh...

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  13. Which of the following lantanide ion is paramagnetic ?

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  14. Which of the following are reducing agents:-

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  15. An element 'X, forms compounds of the formula XCl(3),X(2)O(5)& Ca(3)X^...

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  16. An inorganic salt (A) is decomposed at about 523K to give products (B)...

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  18. In which of the following reaction conc. H(2)SO(4) acts as an oxidisin...

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