A) 3
B) 4
C) 5
D) 6
Correct Answer: D
Solution :
Six electrons are required for the complete reduction of one molecule of\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}.\] \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}+14{{H}^{+}}+6{{e}^{-}}\xrightarrow[{}]{{}}2C{{r}^{3+}}\] \[+2{{K}^{+}}+7{{H}_{2}}O\]You need to login to perform this action.
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