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MODERN PUBLICATION-D-AND F-BLOCK ELEMENTS-EXERCISE
- 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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- Which of the two have almost similar size :
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- Mn belongs to :
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- Transition elements are:
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- Copper metal is not used:
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- Zinc oxide is used in:
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- The iron obtained from the blast furnace is called as
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- Heat of combustion is also known as .
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- Fe3O4 is known as .
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- CH(2)Cl(2) is the formula of
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- Nitrous oxide is
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