Statement `KMnO_(4)` acts as oxidant as well as self indicator in its titration with Ferrous ammonium sulphate solution in acidic medium. Explanation `KMnO_(4)` reduces itself to `Mn^(2+)` ions and oxidises `Fe^(2+)` to `Fe^(3+)` as well as after redox reaction is complete, the `KMnO_(4)` at the equivalence point imparts pink colour.A. `S` is correct but `E` is wrong.B. `S` is wrong but `E` is correct.C. Both `S` and `E` are correct and `E` is correct explanation of `S`D. Both `S` and `E` are correct but `E` is not correct explanation of `S`.

Statement `KMnO_(4)` acts as oxidant as well as self indicator in its

1.	Statement `KMnO_(4)` acts as oxidant as well as self indicator in its titration with Ferrous ammonium sulphate solution in acidic medium. Explanation `KMnO_(4)` reduces itself to `Mn^(2+)` ions and oxidises `Fe^(2+)` to `Fe^(3+)` as well as after redox reaction is complete, the `KMnO_(4)` at the equivalence point imparts pink colour.A. `S` is correct but `E` is wrong.B. `S` is wrong but `E` is correct.C. Both `S` and `E` are correct and `E` is correct explanation of `S`D. Both `S` and `E` are correct but `E` is not correct explanation of `S`.
Answer» Correct Answer - C The explanation is correct reason of statement.

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`0.80 g` of sample of impure potassium dichromate was dissolved in water and made up to `500 mL` solution. `25 mL` of this solution treated with excess of `KI` in acidic medium and `I_(2)` liberated required `24 mL` of a sodium thiosulphate solution. `30 mL` of this sodium thiosulphate solution required `15 mL` of `N//20` solution of pure potassium dichromate. What was the percentage of `K_(2)Cr_(2)O_(7)` in given sample?A. `73.5%`B. `75.3%`C. `36.75%`D. none of these
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The unbalanced equation for the reaction of `P_(4)S_(3)` with nitrate in aqueous acidic medium is given below : `P_(4)S_(3)+NO_(3)^(-)rarrH_(3)PO_(4)+SO_(4)^(2-)+NO` the number of moles of water reuired per mole of `P_(4)S_(3)` is :A. 18B. `(8)/(3)`C. 8D. 28
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