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Which element of lanthanoid shows +4 oxi...

Which element of lanthanoid shows +4 oxidation state?

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Why do lanthanides show usually +3 oxidation state?

Which shows only -1 oxidation state?

Although +3 oxidation state is the characteristic oxidation state of lanthanoids but cerium shows +4 oxidation state also. Why ?

Name a lanthanoid that exhibits + 4 oxidation state.

Fe shows an oxidation state of +1 in

Which of the following lanthanoids show + 2 oxidation state besides the characteristic oxidation state + 3 of lanthanoids -

The compounds in which the elements of group- 14 show an oxidation state of +4 are expected to be covalent, whereas the compound in which they show an oxidation state of +2 are expected to be ionic-explain with reason.

Write down the names of the lanthanoid elements which show + 4 and + 2 oxidation states. Correlate this type of behaviour with the electronic configuration of these elements.

Which of the following actinoids show oxidation states upto + 7 -

UNITED BOOK HOUSE-SET-11-Exercise
  1. 0.0024 (M) Acetic acid solution has specific conductance 7.896xx10^-5 ...

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  2. What is the role of stabilizer and depressant in froth flotation proce...

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  3. Which element of lanthanoid shows +4 oxidation state?

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  4. Why Ag is considered to be a transitional element though it has d^10 g...

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  5. Complete the reaction : MnO4 + C2O4^(2-) + H^+ rarr

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  6. Why Gadolinium (Z=64 and Lutetium (Z=71) shows +3 oxidation state?

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  7. State with chemical equation when pH is excessively reduced for aqueou...

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  8. Why 2% enthanol is mixed in preservation of chloroform?

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  9. Identify A rarr D CH3Br + Mg overset(Dry)underset(ether) rarr A overse...

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  10. Identify A to D

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  11. Why orthomethoxy phenol has less acidic nature than nitrophenol?

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  12. What will happen when C6H5overset(oplus)N2overset(Theta)Cl as added to...

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  13. How would you carry out the following conversion Propene rarr Propan-1...

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  14. Which of the following metals can be purified by electrorefining?

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  15. What will happen when aniline is heated with oleum at 180^@C?

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  16. Why aromatic primary amine can't be synthesised by Gabriel thalimide p...

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  17. Arrange the compounds as per increasing basicity.

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  18. What is the cause of pernicious anaemia?

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  19. Write two reactions of Glucose with Br2 water and NaBH4

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  20. Establish the equation for half life of a zero order reaction.

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