A) 1/3
B) 3
C) 1/6
D) 6
Correct Answer: B
Solution :
[a] 1/3 It oxidizes stannous salt to stannic salt \[S{{n}^{2+}}\xrightarrow{{}}\,S{{n}^{4+}}+2{{e}^{-}}]\times 3\] \[C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}+6{{e}^{-}}\xrightarrow{{}}2C{{r}^{3+}}+7{{H}_{2}}O\] \[3S{{n}^{2+}}+C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}\] \[\xrightarrow{{}}3S{{n}^{2+}}+C{{r}_{2}}O_{7}^{2-}+14{{H}^{+}}\] \[\frac{1}{3}\,\,mole\,of\,{{K}_{2}}\,C{{r}_{2}}{{O}_{7}}\,\,is\,reduced\]You need to login to perform this action.
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