A) \[Cr{{O}_{3}}\]
B) \[CrO_{4}^{2-}\]
C) \[C{{r}_{2}}O_{7}^{2-}\]
D) \[C{{r}_{3}}O_{10}^{2-}\]
Correct Answer: C
Solution :
Yellow chromates are converted to orange dischromates on adding acid and vice-versa when alkali is added to dischromates. \[2CrO_{4}^{2-}+2{{H}^{+}}\xrightarrow{{}}C{{r}_{2}}O_{7}^{2-}+{{H}_{2}}O\]You need to login to perform this action.
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