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(X) + K2CO3 + Air overset(heat)rarr (Y) ...

`(X) + K_2CO_3 + Air overset(heat)rarr (Y)`
`(Y)+Cl_2 rarr (Z)` Pink which of the following is correct ?

A

X back , `MnO_2`Y = Blue, `K_2CrO_4,Z=KMnO_4`

B

X=green `Cr_2O_3` Y=yellow `K_2CrO_4, Z K_2CrO_7`

C

X=black ,`MnO_2` Y= green `K_2MnO_4, Z=KMnO_4`

D

X = black , `Bi_2O_3,`Y = Colouless `KBiO_2,Z = KBiO_2`

Text Solution

Verified by Experts

The correct Answer is:
C
`MnO_(2) + K_2CO_3 + "air" overset(Delta) rarr K_2MnO_4, K_2MnO_4 + Cl_2 rarr KMnO_4`
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AAKASH SERIES-D & F BLOCK ELEMENTS-LEVEL-II (LECTURE SHEET) (EXERCISE-I)(SINGLE & ONE OR MORE THAN ONE CORRECT ANSWERS)
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  7. Mercurous ion can be represented as

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  8. Transition elements with 4s^(1) configuration are:

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  9. Identify the correct statements :

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  10. An element of 3d-transition series shows two oxidation states x and y,...

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  11. Which of the following forms interestitial compounds(s)?

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  12. The stable oxidation state of Mn are

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  13. Which of the following compounds is coloured

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  14. Which of the following compounds is expected to be coloured :

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  15. The aqueous solution of the following salt will be coloured in the cas...

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  18. Which of the following are not coloured due lo charge transfer

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  19. Oxides of which of the following melals show oxidation state of +8 ?

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  20. Select the compounds having metal in zero oxidation state

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