Analytical ChemistryHard

Question

Which of the statements is not true ?

Options

A.On passing H2S through acidified K2Cr2O7 solution, a milky colour is observed
B.Na2Cr2O7 is preferred K2Cr2O7 over in volumetric analysis
C.K2Cr2O7 solution in acidic medium is orange
D.K2Cr2O7 solution becomes yellow on increasing the pH beyond 7

Solution

Being hygroscopic, sodium dichromate, Na2Cr2O7 cannot be used in volumetric analysis.
All othe given statements are true.

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