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MODERN PUBLICATION-D-AND F-BLOCK ELEMENTS-EXERCISE
- The metal which liberates hydrogen from hot NaOH solution is :
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- In the reaction HgCl(2) + 4KI rarr M+2KCl,
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- Hard steel contains :
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- In which types of endosperm are the first division cellular?
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- The sand stone in some iron ores is removed by:
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- The d-block elements form alloys among themselve, because
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- Write some characteristics of transition elements.
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- Most of the known elements are :
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- Mn belongs to :
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- An aqueous solution of ferric chloride is acidic. Explain.
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- Orford process is used in extraction of:
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- Red P on heating with HNO3 gives :
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- Densest transition element is :
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- Permanent magnets are generaly made of alloys of :
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- Which forms interstitial compounds ?
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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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- Which of the following oxides of chromium is amphoteric in nature ?
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