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MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-QUICK MEMORY TEST (C. CHOOSE THE CORRECT ALTERNATIVE)
- The most common oxidation states of cerium are
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- Lanthanoid compounds in general are less/more basic than actinoid comp...
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- NO2^- is oxidised to N2//NO3^- by acidified KMnO4
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- As we proceed from La(OH)3 to Lu(OH)3 basic strength increases / decre...
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- Misch metal alloy contains about 95% lanthanoid/actinoid metais.
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- Baeyer's reagent is an alkaline KMnO4/alkaline K2Cr2O7 solution.
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- Ionic radius of Ce^(3+) (Z = 58) is less/more than that of Yb^(3+) (...
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- The number of unpaired electrons in gadolinium (Z=64) is :
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- Colour of acidic K2Cr2O7 solution is orange/yellow.
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- Mn2 O3 is acidic/basic oxide.
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- Pt^(4+) is less / more stable than Ni^(4+) .
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- Density of Mn is more/ less than Fe.
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