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An explosion takes place when conc. H2SO...

An explosion takes place when conc. `H_2SO_4` is added to `KMnO_4`. Which of the following is formed?

A

`Mn_(2)O_(7)`

B

`MnO_(2)`

C

`MnSO_(4)`

D

`Mn_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
A
`2KMnO_(4)+underset("conc".)(H_(2)SO_(4))rarrMn_(2)O_(7)+K_(2)SO_(4)+H_(2)O`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. In alkaline H(2)O(2),Cr(2)O(7)^(2-) changes to tetraperoxo species… ha...

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  2. K(2)Cr(2)O(7)//H^(+) changes to green by

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  3. An explosion takes place when conc. H2SO4 is added to KMnO4. Which of ...

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  4. The outer electronic configuration of Gd (At.No. 64) is

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  5. Identify the incorrect statement among the following.

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  6. The atomic size of cerium and promethium is quite close, because

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  7. The lanthanide contraction relates to

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  8. Because of lanthnoid contraction, which of the following pairs of elem...

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  9. Ln^(3+) (trivalent lanthanides ions ) have electronic configuration.

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  10. The basicity of lanthanoid hydroxides, across the lanthanoid series

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  11. There are 14 elements in actinoid series. Which of the following eleme...

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  12. lanthanoid contraction, the unique in the chemistry of lanthanoids, is...

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  13. Misch metal is

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  14. Consider the following statements, (I) La(OH)(3) is the least basi...

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  15. Which one of the following exists in the oxidation state other than +3...

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  16. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

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  17. Lanthanoid contraction is caused due to:

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  18. Match the Column and choose the correct option from codes given below.

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  19. Which of the following ion acts as an oxidising agent?

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  20. Which of the following has got incompletely filled f-subshell?

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