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VGS PUBLICATION-BRILLIANT-PRINCIPLES OF METALLURGY-EXERCISE
- During the electrolysis of sodium chloride ----------- gas liberates a...
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- is used to convert sulphide ore into oxide ore.
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- The ore of mercury is
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- Low boiling metals are purified by-----method
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- The impurities are oxidised in this method.
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- Rusting of iron is
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- Smelting is ally carried out in
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- The substance added to remove the impurity is
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- The formula for Iron silicate slag is
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- The furnaces in which there is no direct contact between the hearth an...
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- Most abundant ore of iron is
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- If the gangue is basic, the flux used is
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- The gas released in calcination is
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- The method suitable for concentration of the sulphide ores is
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- Arranging metals in the decreasing order of their reactivity is called
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- The method suitable for purification of low boiling metals is
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- The corrosion of iron object is favoured by
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- A process in which the ore is strongly heated in the absence of air or...
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- The process of extraction of metals from their ore is called.
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- The element or compounds of the metals which occur in nature in the ea...
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