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State any four uses of KMnO4...

State any four uses of `KMnO_4`

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ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)
  1. Transition metals easily form intermetallic alloys. What property of t...

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

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  3. State any four uses of KMnO4

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  4. State any four uses of K2Cr2O7.

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

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

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  7. What is the chemistry of chromyl chloride test?

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

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

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

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

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

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

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

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

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  16. Which is the last element in the series of the actinoids? Write the el...

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  17. In what way is the electronic configuration of the transition elements...

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  18. What are different oxidation states exhibit by lanthanoids?

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  19. Explain the following terms : (a) Chemistry of all Lanthanoids is so...

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  20. What is the electronic difference between lanthanoids and actinoids? W...

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