Which of the following statement (s) is /are correct? (I) In acidic solution dichromate ions are converted to chromate ions . (II) An acidified soluti
Which of the following statement (s) is /are correct?
(I) In acidic solution dichromate ions are converted to chromate ions .
(II) An acidified solution of `K_(2)Cr_(2)O_(7)` liberates iodine from iodides.
(III) Potassium dichromate is used as a titrant for `Fe^(2+)` ions.
(IV) Ammonium dichromate on heating undergo exothermic decomposition to give `Cr_(2)O_(3)`.
Choose the correct option .
A. I,II and III
B. II,III, and IV
C. I,II and IV
D. II and III
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Correct Answer - C
Potassium dichromate is not used as a titrant for `Fe^(2+)` ion. Hence I,II and IV are correct.
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