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What is lanthanoid contraction ? What ar...

What is lanthanoid contraction ? What are the consequences of lanthanoid contraction?

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VGS PUBLICATION-BRILLIANT-MOST IMPORTANT QUESTIONS-P - BLOCK ELEMENTS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. Give the oxidation states of halogens in the following : Cl(2)O

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  2. Give the oxidation states of halogens in the following : ClO(2)^(-)

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  3. Give the oxidation states of halogens in the following : KBrO(3)

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  4. Give the oxidation states of halogens in the following : NaClO(4)

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  5. Iodine is more soluble in KI than in water - Explain.

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  6. List out the uses of Neon.

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  7. Write the uses of ozone.

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  8. In modern diving apparatus, a mixture of He and O(2) is used - Why ?

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  9. Scandium is a transition element. But Zinc is not. Why ?

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  10. Why Zn^(2+) is diamagnetic whereas Mn^(2+) is paramagnetic ?

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  11. Write 'spin only' formula to calculate the magnetic moment of transiti...

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  12. Calculate the 'spin only' magnetic moment of Fe(aq)^(2+) ion.

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  13. Aqueous Cu^(2+) ions are blue in colour, where as Aqueous Zn^(2+) ions...

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  14. Give two reactions in which transition metals or their compounds acts ...

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  15. What is an alloy ? Give example.

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  16. What is lanthanoid contraction ? What are the consequences of lanthano...

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  17. What is Misch metal ? Given its composition and use.

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  18. What is a ligand ?

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  19. What is an ambidentatc ligand ? Give example.

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  20. CuSO(4).5H(2)O is blue in colour where as anhydrous CuSO(4) is colourl...

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