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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- Zr and Hf have same atomic and ionic radii because
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- What is the equivalent weight of KMnO4 in acidic medium is equal to:
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- Which metal has lowest melting point? Cs Hg Mn Cu
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- The maximum oxidation state of Os is ?
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- Express 2167 in roman numbers.
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- Express 2168 in roman numbers.
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- KMnO4 on heating gives
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- Chromyl chloride is :
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- Express 2170 in roman numbers.
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- In the reaction : CrO4^(2-) + X rarr Cr2O7^(2-), X is
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- In which of the following pairs, the atomic size is almost the same ?
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- The hybridisation of Cr in Cr2O7^(2-) ion is
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- In alkaline medium, equivalent weight of KMnO4 is ,
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- What is lanthanoid contraction ?
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- In acidic medium the equivalent weight of K2Cr2O7, is :
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- Ammonium dichromate is used in fireworks. The green coloured powder bl...
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- The number of moles of KMnO4 that will be needed to react with one ...
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- The number of unpaired electrons in Ni^(2+) is :
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- The electronic configuration of terbium (IV) (At. No. 65) is
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- Which of the following statement is not correct ?
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