Which of the following after reacting with \[KI\] do not remove iodine

1.	Which of the following after reacting with \[KI\] do not remove iodine [MP PET 1989]
A.	\[CuS{{O}_{4}}\]
B.	\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
C.	\[HN{{O}_{3}}\]
D.	\[HCl\]
Answer» E.

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Which of the following after reacting with \[KI\] do not remove iodine [MP PET 1989]

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