1.

Which of the following solutions will exactly oxidize `25mL` of an acid solution of `0.1 M Fe` (`II`) oxalate?A. `25 mL` of `0.1 M KMnO_(4)`B. `25 mL` of `0.2 M KMnO_(4)`C. `25 mL` of `0.6 M KMnO_(4)`D. `15 mL` of `0.1 M KMnO_(4)`

Answer» Correct Answer - D
`{:("Oxidation",,"Reduction"),(Fe^(3+)toFe^(3+)+e^(-),,MnO_(4)^(-)toMn^(2+)+5e^(-)),(C_(2)O_(4)^(2-)to2CO_(2)+2e^(-),,):}`
Balance equation:
`5FeC_(2)O_(4)+3MnO_(4)^(-) rarr` Product
`(M_(1)V_(1))/(5)=(M_(2)V_(2))/(3)=(0.1xx25)/(5)=0.5`
For exact neutralisation `(M_(2)V_(2))/(3)` should by equal to `0.5`
(`a`) `(M_(2)V_(2))/(3)=(0.1xx25)/(3)=0.83`
(`b`) `(M_(2)V_(2))/(3)=(0.2xx25)/(3)=1.66`
(`c`) `(M_(2)V_(2))/(3)=0.6xx25)/(3)=5`
(`d`) `(M_(2)V_(2))/(3)=(0.1xx15)/(3)=0.5`


Discussion

No Comment Found

Related InterviewSolutions