Question

Given below are two statements:

Statement I: Potassium permanganate on heating at 573K forms potassium manganate.

Statement II: Both potassium permanganate and potassium manganate are tetrahedral and paramagnetic in nature. 

In the light of the above statements, choose the most appropriate answer from the options given below.

Options

• Statement I is true but statement II is false.

• Both statement I and statement II are true.

• Statement I is false but statement II is true.

• Both statement I and statement II are false.

Answer 1

Statement I is true but statement II is false.

Explanation:

When potassium permanganate (KMnO₄) is heated to about 573 K, it decomposes to form potassium manganate (K₂MnO₄), manganese dioxide, and oxygen.

\[\ce{2KMnO4 -> K2MnO4 + MnO2 + O2}\]