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MODERN PUBLICATION-D-AND F-BLOCK ELEMENTS-EXERCISE
- Inblastfurnace, iron oxide is reduced to iron by
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- Red P on heating with HNO3 gives :
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- German Silver is an alloy of Copper and:
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- The carbo content of :
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- Galvanised iron sheets have coating of :
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- KI and CuSO(4) solution when mixed give
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- Which from of iron is least ducite ?
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- The fusible alloy of cadmium is
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- Stainless steel does not rust because :
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- 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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- 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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- In Gold Schmidt reaction , certain metallic oxides are reduced to the ...
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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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- A lady's 18 carat gold wedding ring has become discoloured with some m...
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- Mercury on heating with aqua - regia yields :
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