Solution of oxalate is colourless. It is made acidic by adding excess of H+, then titrated with KMnO4. Now at a moment if someone has added large amount of KMnO4, in it then no. of possible products are

Question

Solution of oxalate is colourless. It is made acidic by adding excess of H+, then titrated with KMnO4. Now at a moment if someone has added large amount of KMnO4, in it then no. of possible products are (A) CO2, Mn2+, H2O (B) CO2, MnO2, H2O (C) MnO2, H2O, CO2 (D) CO2, MnO2, H2O, Mn2+

Tardigrade Admin · Accepted Answer

If KMnO 4 was added slowly than option a was correct, but at a moment due to addition of large amount of KMnO 4, reduction of whole KMnO 4 added does not take place, it also react with Mn 2+. which had formed in the solution to give MnO 2 2 MnO 4-+3 Mn 2++2 H 2 O longrightarrow 5 MnO 2+4 H +

Q. Solution of oxalate is colourless. It is made acidic by adding excess of $H^{+}$ , then titrated with $K M n O_{4}$ . Now at a moment if someone has added large amount of $K M n O_{4}$ , in it then no. of possible products are

$C O_{2}, M n^{2 +}, H_{2} O$

$C O_{2}, M n O_{2}, H_{2} O$

$M n O_{2}, H_{2} O, C O_{2}$

$C O_{2}, M n O_{2}, H_{2} O, M n^{2 +}$

Q. Solution of oxalate is colourless. It is made acidic by adding excess of H+, then titrated with KMnO4​. Now at a moment if someone has added large amount of KMnO4​, in it then no. of possible products are

CO2​,Mn2+,H2​O

CO2​,MnO2​,H2​O

MnO2​,H2​O,CO2​

CO2​,MnO2​,H2​O,Mn2+

If KMnO4​ was added slowly than option a was correct, but at a moment due to addition of large amount of KMnO4​, reduction of whole KMnO4​ added does not take place, it also react with Mn2+. which had formed in the solution to give MnO2​ 2MnO4−​+3Mn2++2H2​O⟶5MnO2​+4H+

Q. Solution of oxalate is colourless. It is made acidic by adding excess of $H^{+}$ , then titrated with $K M n O_{4}$ . Now at a moment if someone has added large amount of $K M n O_{4}$ , in it then no. of possible products are

$C O_{2}, M n^{2 +}, H_{2} O$

$C O_{2}, M n O_{2}, H_{2} O$

$M n O_{2}, H_{2} O, C O_{2}$

$C O_{2}, M n O_{2}, H_{2} O, M n^{2 +}$