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Name the (i) lightest and the (ii) heavi...

Name the (i) lightest and the (ii) heaviest element (in terms of density)among the transition elements.

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(i) Sc (ii) Os Ir
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
  1. Name the d-block element which do not have partially filled d-orbitals...

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  2. What is meant by the 'lanthanide contraction'? Mention one important f...

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  3. Name the (i) lightest and the (ii) heaviest element (in terms of densi...

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  4. Which element among d-block element has(i) the lowest melting point an...

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  5. Why Zinc has lowest melting point in 3d series?

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  6. Why are the ionisation energies of 5d elements greater than 3d element...

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  7. Why do transition elements show variable oxidation state?

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  8. What is the most common oxidation state of first transtion series.?

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  9. Name the three factors which determine the stability of a particular o...

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  10. Why is the E^(Theta) value for the Mn^(3+)//Mn^(2+) couple much postiv...

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  11. {:("Element",Cr,Mn,Fe),(E^(underset(-)(o))(M^(2+)//M),-0.90V,-1.18V,-0...

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  12. Which of the following ions would form (i) coloured and (ii) colourles...

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  13. Why Ti^(+4) complexes are diamagnetic?

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  14. A substance is found to have a magnetic moments of 3.9BM.How many unpa...

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  15. Explain giving reason: (a) Transition metals and many of their compo...

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  16. Describe the general characteristics of transition elements with speci...

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  17. Which type of reaction MnO(4)^(2-) shows with aid, dilute-alkali or wa...

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  18. Why KMnO(4) is stored in dark bottle and water happens to it's aidic s...

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  19. Why does AgNO(3) produce a black stain on the skin?

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  20. Why is AgBr used in photography?

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