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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_2SO_4Cr_2(SO_4)_324H_2O` (Chrome alum)

B

`Pb CrO_4` (Chromite yellow)

C

`FeCr_2O_4` (Chromite)

D

`PbCrO_4PbO` (Chrome red)

Text Solution

Verified by Experts

The correct Answer is:
C
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NCERT FINGERTIPS-THE D- AND F- BLOCK ELEMENTS -Some Important Compounds Of Transition Elements
  1. Potassium dichromate is prepared from

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  2. Which of the following reactions do not result in the preparation of p...

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

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  4. Yellow coloured aquesous solution of sodium chromate changes to orange...

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  5. What happens when potassium iodide reacts with acidic solution of pota...

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  6. Acidified potassium dichromate reacts with potassium iodide and oxidie...

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  7. One mole of acidified K(2)Cr(2)O(7) on reaction with excess of KCl wil...

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  8. What would happen when a solution of potassium chromate is treated wit...

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  9. Identify the correct structure of dichromate ion.

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  10. In the dichromate anion (Cr2O7^(2-))

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  11. When MnO2 is fused with KOH and O2, what is the product formed and its...

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  12. The equation 3MnO4^(2-)+4H^(+)to2MnO4^(-)+MnO2+2H2O represents

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  13. Explain why does colour of KMnO(4) disappear when oxalic acid is added...

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  14. Complete the given reactions. (A) 2MnO4^(-)+H2O+I^(-)to2ul((i))+2O...

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  15. The number of moles of KMnO(4) that will be needed to react completely...

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  16. Complete the given reaction. 2Mn^(2+)+5ul((i))+8H2Oto2ul((ii))+10ul...

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  17. Which of the following is correct representation of reaction of acidif...

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  18. Which of the following reactions is not correct ?

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  19. A solution of KMnO4 is reduced to various products depending upon its ...

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  20. In acidic medium, KMnO4 oxidises FeSO4 solution. Which of the followin...

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