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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- Complete the chemical reaction : S2O3^(2-)+ Cr2O7^(2-)+ H^(+) rarr
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- What happens when 80% of copper combines with 20% of tin?
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- What is chromyl chloride test for chlorides ?
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- Why is La(OH)3 more basic than Lu(OH)3 ?
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- What is the most common oxidation state in the Lanthanoids ?
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- How many unpaired electrons are present in Gd(Z = 64) ?
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- Name the actinoid used for the manufacture of fine rods for atomic rea...
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- Arrange Ce^(3+) (Z = 58), Sm^(3+) (Z = 62) and Yb^(3+)(Z = 70) in decr...
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- Name the basic cause of similar atomic radii of Hf and Zr.
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- Does actinoids show actinoid contraction similar to lanthanoid contrac...
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- Name the trivalent lanthanoid having the configuration [Xe] 4f^7.
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- Which of the following ion is colourless ? U^(3+), Cm^(4+), Th^(4+)
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- Name two tripositive lanthanoid ions which are colourless.
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- Express 2111 in roman numbers.
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- Express 2112 in roman numbers.
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- Express 2113 in roman numbers.
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- Express 2115 in roman numbers.
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- Express 2116 in roman numbers.
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- True of False : In Cr2O7^(2-), all Cr-O bonds are equivalent.
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- True of False : Ti(III) compounds are coloured while Ti (IV) compounds...
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