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Which of the following ions are expected...

Which of the following ions are expected to be coloured ? `Ni^(2+), Ti^(3+), Cu^(+), Sc^(3+), Zn^(2+)`

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. What is the theoretical magnetic moment of Ti^(3+) ion ?

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  2. Which of the two V(+5) or V(+4) is diamagnetic ?

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  3. Which of the following ions are expected to be coloured ? Ni^(2+), Ti^...

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  4. Express 2072 in roman numbers.

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  5. Out of Fe^(2+) and Fe^(3+) which is more paramagnetic and why ?

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  6. Express 2073 in roman numbers.

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  7. Name any three elements of transition series which have abnormal elect...

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  8. Why Zn^(2+) salts are colourless and Ni2+ salts are coloured?

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  9. A compound has been found to have magnetic moment of 3.9 B.M. How many...

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  10. Name the catalyst of Vanadium used for oxidation of SO2 to SO3 in cont...

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  11. Give reason, Mn^(2+) ion is more paramagnetic than Fe^(2+) ion.

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  12. What is the oxidation state of Cr in K2Cr2O7?

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  13. Fill in the blanks : The orange colour of dichromate solution changes ...

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  14. Fill in the blanks : MnO2 on heating with potassium hydroxide in the p...

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  15. Fill in the blanks : Chromite is ...........

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  16. What happens when 28% of copper, 2% of iron and 70% of nickel combine ...

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  17. What happens when 60% of copper and 40% of nickel combine together?

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  18. The oxidation state of chromium in dichromate ion (Cr2O7^(2-)) and chr...

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  19. What is the oxidation state of Mn is manganate ion.

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  20. What is the oxidation state of Cr in CrO5.

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