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NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-VI (H.W)
- What is the composition of mischmetal alloy and what are it's uses?
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- Generally transition elements from coloured salts due to the presence ...
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- Which of the following is amphoteric oxide? Mn(2)O(7),CrO(3),Cr(2)O(...
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- Interstitial compounds are formed when small atoms are trapped inside ...
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- Higher oxidation state of manganese in fluoride is +4 (MnF(4)) but hig...
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- Although zirconium belongs to 4d transition series and hafnium to 5d t...
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- Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...
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- The aqueous solution of transition metal salt changes colour from pink...
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- While Fe^(3+) is stable Mn^(3+) is not stable in acitic solution becau...
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- Which of the following transition metal oxides is(normally) neither ac...
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- The thermally unstable compounds are
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- Which one of the following reactions cannot occur?
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- Which of these are liquids at room temperature ?
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- The typical acidic oxides are
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- The compounds that undergo hydrolysis readily is/are
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- Which are the best suitable as coinage metals?
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- Paramagnetism is exhibited by :
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- In the form of dichromate, Cr(VI) is a strong oxidising agent in acidi...
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- The diamagnetic compounds is/are
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- The colour of the transition metal ions is due to
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- Select the correct statement(s) with respect to oxides and oxoanions o...
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