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MODERN PUBLICATION-D-AND F-BLOCK ELEMENTS-EXERCISE
- Magnetite is :
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- Automobile engine blocks are made up of :
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- Invar is an alloy of :
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- Pig iron :
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- The formula of haematite is :
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- Iron rusts in the persence of :
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- Which match is inccorect ?
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- Iron, once dipped in concentratred H2SO4 , does not displace copper fr...
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- Wood's metal is an alloy of :
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- The grey cast iron contains:
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- Soft and pliable steel is obtained by :
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- Pig iron is manufactured by:
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- Which of the following has the highest percentage of carbon ?
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- Clock pendulums are made from :
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- Steel that is resistant to acids is :
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- Which one of the metals does not form amalgam ?
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- Silver is a soft metal . It is hardened by alloying it with small amou...
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- Other forms of iron can be produced from :
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- Usefull lanthanide member is:
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- Eu. and .Yb. show + 2 oxidation state, whereas + 4 oxidation state is ...
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