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Why do transition elements show similari...

Why do transition elements show similarities along the horizontal period ?

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This is because all of them contain incompletely filled d-subsell whereas the outer shell electronic configuration remains the same.
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CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Short Answer Type
  1. What is the effect of increasing pH on K2Cr2O7 solution?

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  2. What is the basic difference between the electronic configurations of ...

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  3. Why do transition elements show similarities along the horizontal peri...

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  4. Out of Al, Zn, Mg and Fe which is the densest element?

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  5. Write the electronic configuration of the element with atomic number 1...

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  6. Explain why transition elements have many irregularities in their elec...

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  7. Explain the following : The paramagnetic character in 3d-transition ...

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  8. Scandium forms no coloured ions, yet it is regarded as a transition el...

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  9. Assertion : Hydrochloric acid is not used to acidify a KMnO(4) solutio...

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  10. Why Sm^(2+) , Eu^(2+) and Yb^(2+) ions are good reducing agents , but ...

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  11. Why is the separation of lanthanide elements difficult?

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  12. Account for the fact that second ionization energies of both Cr and Cu...

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  13. Name the compound used for measuring the hardness of water, i.e., for ...

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  14. How will you distinguish between the following isomer pairs? (i). [...

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  15. The magnitude of stability constant gives an indication of the stabili...

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  16. What are the most important coordination numbers encountered in coordi...

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  17. Name the central atom present in haemoglobin and chlorophyll.

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  18. the red coloured Wilkinson's catalyst, [RhCl(PPh(3))(3)] is a homogeno...

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