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MBD PUBLICATION-TRANSITION METALS (d-BLOCK ELEMENTS)-QUESTION BANK
- Passivity of iron is due to the formation of thin film of its :
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- Iron gets rusted due to the action of :
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- Hard steel contains :
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- The sand stone in some iron ores is removed by:
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- Most of the known elements are :
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- Mn belongs to :
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- Orford process is used in extraction of :
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- The percentage of carbon is same in :
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- The highest magnetic moment for transition metals exist for :
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- The carbo content of :
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- Near the top of a blast furnace employed for the extrction of iron the...
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- Zinc , cadmium and mercury are :
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- Essential constituent of an amalgam is :
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- The chloride that turns black on addition of NH4OH is :
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- Calomel may be freed from traces of metallic mercury by washing with :
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- Spelter is:
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- Amalgams are:
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- Chemical name of corrosive sublimate is :
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- Consider an ideal gas contained in a vessel. It the intermolecular int...
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- Mercury on heating with aqua - regia yields :
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