A) \[Cr{{O}_{2}}C{{l}_{2}}/{{H}_{3}}{{O}^{+}}\]
B) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]in acidic medium
C) \[{{O}_{3}}/{{H}_{2}}O-Zn\]dust
D) PCC
Correct Answer: C
Solution :
Hence, the correct option is [c].You need to login to perform this action.
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