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Why niobium and tantalum show similar pr...

Why niobium and tantalum show similar properties?

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ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)
  1. Account for the fact that the third ionization enthalpies of both Mn a...

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

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  3. Why niobium and tantalum show similar properties?

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

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

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

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

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  8. State any four uses of KMnO4

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  9. State any four uses of K2Cr2O7.

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

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

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  12. What is the chemistry of chromyl chloride test?

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

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

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

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

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

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  18. ""(57)La and ""(71)Lu Lu have no partially filled 4f-subshell, yet the...

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  19. Why the elements with at. no. 57 to 71 are called inner transition ele...

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  20. Comment upon the statement that: (i) The electronic configurations o...

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