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Question

Chemistry Question on Solutions

In neutral or alkaline solution, MnO4- oxidises thiosulphateto :

A

S2O72S_2O^{2-}_7

B

S2O82S_2O^{2-}_8

C

S2O32S_2O^{2-}_3

D

S2O42S_2O^{2-}_4

Answer

S2O42S_2O^{2-}_4

Explanation

Solution

The correct answer is (D): S2O42S_2O^{2-}_4
H2O+8MnO-4+3S2O2-3→8MnO2+6SO2-4+2OH-