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Which of the following compounds is used...

Which of the following compounds is used as the starting material for the preparation of potassium dichromate?

A

`K_(2)SP_(4). Cr_(2)(SO_(4))_(3). 24H_(2)O`

B

`PbCrO_(4)`

C

`FeCr_(2)O_(7)`

D

`PbCrO_(4). PbO`

Text Solution

Verified by Experts

The correct Answer is:
C
`FeCr_(2)O_(4)` is used as the starting material for `K_(2)Cr_(2)O_(7)`.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. The magnetic nature of elements depends on the presence of unpaired el...

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  2. Consider the following statements for transition elements. (I) form...

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  3. Which of the following compounds is used as the starting material for ...

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  4. Potassium dichromate is used

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  5. The bonds present in the structure of dichromate ion are

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  6. 4K(2) Cr(2) O(7) overset(heat)rarr 4K(2) CrO(4) + 3O(2) + X. In the ab...

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  7. When MnO(2) fused with KOH, a coloured compound is formed . The produc...

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  8. Which of the oxide of manganese is amohoteric

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  9. Consider the following statements. I. As the oxidation number of a m...

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  10. A blue solution of copper sulphate becomes darker when treated with ex...

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  11. 2mNo(4)^(2-)+cl (2) rarr Mn^(2+)+5Fe^(3+) MnO(4)^(2-) can be conver...

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  12. One mole of FeC(2)O(4) is oxidised by KMnO(4) in acidic medium. Number...

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  13. Acidified potassium permanganate soultion is decoloursied by

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  14. KMnO(4) in basic medium is used as

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  15. The atomic number of V,Cr, Mn and Fe are respectively 23,24,25 and 26....

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  16. In the following figure the Cr-O-Cr bond angle is of X^(o). What is th...

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  17. Acidified KMnO(4) can be decolourised by:

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  18. On heating KMnO(4), one among the following is not formed:

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  19. KMnO(4) forms dark purple crystals, which are isostructural with those...

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  20. In alkaline H(2)O(2),Cr(2)O(7)^(2-) changes to tetraperoxo species… ha...

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