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Consider the following statements about manganate and permanganate ions. Identify the correct statements : A. The geometry of both manganate and permanganate ions is tetrahedral. B. The oxidation states of Mn in manganate and permanganate are +7 and +6, respectively. C. Oxidation of Mn (II) salt by peroxodisulphate gives manganate ion as the final product. D. Manganate ion is paramagnetic and permanganate ions is diamagnetic. E. Acidified permanganate ion reduces oxalate, nitrite and iodide ions. Choose the correct answer from the options given below:

1. (1) A, C and D Only
2. (2) A, B and C Only
3. (3) A, D and E Only
4. (4) A and D Only

Correct answer: (4) A and D Only

Solution

The correct option is right because both manganate and permanganate ions have tetrahedral geometry, and manganate is paramagnetic due to the presence of unpaired electrons, while permanganate is diamagnetic as it has no unpaired electrons.

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