(C) In the redox titration of $KMnO_4$ against $FAS$,an acidic medium is required to ensure the reduction of $MnO_4^-$ to $Mn^{2+}$.Nitric acid $(HNO_

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Nitric acid itself is an oxidizing agent

(C) In the redox titration of $KMnO_4$ against $FAS$,an acidic medium is required to ensure the reduction of $MnO_4^-$ to $Mn^{2+}$.Nitric acid $(HNO_3)$ is not used because it is a strong oxidizing agent $(OA)$ itself.It would oxidize the ferrous ions $(Fe^{2+})$ to ferric ions $(Fe^{3+})$ independently,thereby interfering with the titration results and leading to inaccurate readings.

Class 12 Chemistry Principles Related to Practical Chemistry Titrations

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In the titration of potassium permanganate $(KMnO_4)$ against ferrous ammonium sulphate $(FAS)$ solution,dilute sulphuric acid $(H_2SO_4)$ but not nitric acid $(HNO_3)$ is used to maintain an acidic medium,because:

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A
It is difficult to identify the end point
B
Nitric acid does not act as an indicator
C
Nitric acid itself is an oxidizing agent
D
Nitric acid is a weaker acid than sulphuric acid

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In the titration of potassium permanganate $(KMnO_4)$ against ferrous ammonium sulphate $(FAS)$ solution,dilute sulphuric acid $(H_2SO_4)$ but not nitric acid $(HNO_3)$ is used to maintain an acidic medium,because:

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$8 \ mL$ of $\frac{N}{10} \ HCl$ are required to neutralize $20 \ mL$ of $Na_2CO_3$ solution in water. The normality of the $Na_2CO_3$ solution is: (in $N$)

$25 \ mL$ of a solution of barium hydroxide on titration with a $0.1 \ M$ solution of hydrochloric acid gave a titre value of $35 \ mL$. The molarity of barium hydroxide solution was (in $M$)

Identify the colour change observed when $NaCl$ solution is titrated against $AgNO_3$ solution using fluorescein as an indicator.

In an acidic medium, $10 mL$ of $0.25 M$ oxalic acid is titrated with $KMnO_4$ solution. If the volume of $KMnO_4$ solution required to reach the end point is $10 mL$, the strength of the $KMnO_4$ solution is (in $M$)

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