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_4.Cr_2(SO_4)`

B

`PbCrO_4` (chrome yellow)

C

`FeCr_(2)O_4` (chromite)

D

`PbCrO_4_4PbO` (chrome red)

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The correct Answer is:

c

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