Potassium manganate has the formula $\mathrm{K}{}_2\mathrm{MnO}{}_4$. What is the oxidation number of Mn in it?

More questions on Naming of oxyanions and hydrated salts

• Give the name of CuSO4.5H2O using Greek prefixes for the water of crystallisation. NEET level
• Which is the name of KMnO4? NEET level
• What is the name of NaOCl, which contains the ClO^- ion? NEET level
• Name Na2S2O3.5H2O (photographic hypo). JEE Main level
• Match the anion (Column I) with its name (Column II). Column I: P ClO^-; Q ClO2^-; R ClO3^-; S ClO4^-. Column II: 1 chlorate; 2 hypochlorite... JEE Main level
• Assertion (A): In NaHCO3 the oxidation number of carbon is +4. Reason (R): NaHCO3 is named sodium hydrogencarbonate. Choose the correct opti... JEE Main level