Amount of oxalic acid present in a solution can be determined by its titration with KMnO4 solution in the presence of H2SO4. The titration gives unsatisfactory result when carried out in the presence of HCl, because HCl

Question

Amount of oxalic acid present in a solution can be determined by its titration with KMnO4 solution in the presence of H2SO4. The titration gives unsatisfactory result when carried out in the presence of HCl, because HCl (A) Oxidises oxalic acid to carbon dioxide and water (B) Gets oxidised by oxalic acid to chlorine (C) Furnishes H+ ions in addition to those from oxalic acid (D) Reduces permanganate to Mn2+

Tardigrade Admin · Accepted Answer

Oxalic acid present in a solution can be determined by its titration with

K M n O_{4}

solution in the presence of

H_{2} S O_{4}

K_{2} S O_{4} + 2 M n S O_{4} + 10 C O_{2} + 5 H_{2} O

Titration cannot be done in the presence of

H Cl

because

K M n O_{4}

being a strong oxidising agent oxidises

H Cl

to

C l_{2}

and gets itself reduced to

M n^{2 +}

So actual amount of oxalic acid in solution cannot be determined

Q. Amount of oxalic acid present in a solution can be determined by its titration with $K M n O_{4}$ solution in the presence of $H_{2} S O_{4}$ . The titration gives unsatisfactory result when carried out in the presence of $H Cl$ , because $H Cl$

Oxidises oxalic acid to carbon dioxide and water

Gets oxidised by oxalic acid to chlorine

Furnishes $H^{+}$ ions in addition to those from oxalic acid

Reduces permanganate to $M n^{2 +}$

Q. Amount of oxalic acid present in a solution can be determined by its titration with KMnO4​ solution in the presence of H2​SO4​. The titration gives unsatisfactory result when carried out in the presence of HCl, because HCl

Oxidises oxalic acid to carbon dioxide and water

Gets oxidised by oxalic acid to chlorine

Furnishes H+ ions in addition to those from oxalic acid

Reduces permanganate to Mn2+

Q. Amount of oxalic acid present in a solution can be determined by its titration with $K M n O_{4}$ solution in the presence of $H_{2} S O_{4}$ . The titration gives unsatisfactory result when carried out in the presence of $H Cl$ , because $H Cl$

Furnishes $H^{+}$ ions in addition to those from oxalic acid

Reduces permanganate to $M n^{2 +}$