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When CO2 is passed into aqueous...

When ` CO_2` is passed into aqueous

A

`Na_2 CrO_4` solution, its yellow colour changes to orange

B

`K_2 MnO_4` solution it disproportionates to `KMnO_4` and `MnO_2`

C

`Na_2 Cr_2 O_7` solution, its orange colour changes to green

D

`KMnO_4` solution its pink colour change to green

Text Solution

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The correct Answer is:
A, B
`Na_2 CrO_4` solution, its yellow colour changes to orange
`K_2 MnO_4` solution it disproportionates to `KMnO_4` and `MnO_2`
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BRILLIANT PUBLICATION-THE D-AND F-BLOCK ELEMENTS-QUESTIONS (LEVEL-III)
  1. Although +3 is the characteristic oxidation state for lanthanoids, cer...

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  2. Select correct statements.

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  3. When CO2 is passed into aqueous

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  4. Select correct statements (s)

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  5. Which of the following statements are correct

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  6. Amongst the following, identify the species with an atom in +6 oxidati...

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  7. Which metals are present in german silver?

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  8. The complex forming tendency of a transition metal depends upon:

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  9. The correct statements about Cr^(2+) and Mn^(3+) is (are) (Atomic numb...

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  10. Which of the following salt solutions will be coloured?

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  11. Potassium manganate (K2 MnO4) is formed when

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  12. The magnetic moment of a metal ion of first transition series is 2.83 ...

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  13. The coefficient of H2 SO4 on balancing the following equation is .......

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  14. The number of electrons present in the 5f orbital in ground state of N...

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  15. The oxidation number of Mn in the product of alkaline oxidative fusion...

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  16. The number of water molecule(s) directly bonded to the metal centre in...

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  17. Out of the following, how many of them have magnetic moment value sqrt...

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  18. Out of the following how many oxides are basic: TiO,Sc2 O3,Ti2O3, , ...

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  19. This section contains questions each with two columns-I and II. Match ...

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  20. This section contains questions each with two columns-I and II. Match ...

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