d and f BLOCK ELEMENTS MCQ Quiz: GKFix - Bridge of Knowledge

Question 936

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What is the main reason acidified potassium dichromate can oxidize various substances like iodides, sulphides, and iron(II)?

Because it is highly colored
Because it is inexpensive
Because dichromate is a strong oxidizing agent with a high positive reduction potential
Because it is stable at high temperatures

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Which of the following is a common application of sodium dichromate specifically mentioned in the text?

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What is the typical color of dichromate (Cr2O7^2-) salts in aqueous solution?

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What is the typical color of chromate (CrO4^2-) salts in aqueous solution?

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In the interconversion equilibrium 2 CrO4^2- + 2H+ <=> Cr2O7^2- + H2O, what effect does adding a base (OH-) have?