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Account for the fact that second ionizat...

Account for the fact that second ionization energies of both Cr and Cu are higher than those of the next element.

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ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)
  1. Explain the following (a) Zr and Hf exhibit similar properties. (b...

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  2. Why do the transition elements exhibit similarity in properties along ...

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

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  4. Account for the fact that the third ionization enthalpies of both Mn a...

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  5. Explain that the compounds of tranisition metals are usually coloured ...

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  6. Why niobium and tantalum show similar properties?

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  7. Why do transition metals exhibit the property to form alloys and compl...

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  8. What is an alloy ? Name the two types of alloys formed by transition e...

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  9. Transition metals easily form intermetallic alloys. What property of t...

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  10. List one use of KMnO4 under each of the following heads : (i) as a l...

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  11. State any four uses of KMnO4

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  12. State any four uses of K2Cr2O7.

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  13. Predict with justification the number of moles of KI that would be oxi...

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  14. Draw the structure of : (i) chromate ion and (ii) dichromate ion.

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  15. What is the chemistry of chromyl chloride test?

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  16. How can you convert potassium dichromate into chromyl chloride ? Give ...

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  17. What happens when : (i) K2CrO7 reacts with acidified solution of KI ...

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  18. Explain the difference between the electronic configuration of gadolin...

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  19. What are lanthanoids? Write the name of the lanthanoids.

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  20. What are actinoids ? Write the name of all the actinoids.

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