1.

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

Answer»

`K_2SO_4.Cr_2(SO_4)_3.24H_2O` (CHROME alum)
`PbCrO_4`( Chrome YELLOW)
`FeCr_2O_4 (Chromite)
PbCrCvPbO (Chrome red)

ANSWER :C


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