Class 12 NEET Chemistry D And F Block Elements Questions

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Question : 49 of 110

Marks: +1, -0

Which of the statements is not true?

(2012)

On passing H2S trough acidified K2Cr3O7 solution a milky colour is observed
Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis
K2Cr2O7 solution in acidic medium is orange
K2Cr2O7 solution becomes yellow on increasing th pH beyond 7.

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