1.

\[MnO_{4}^{2-}\] (1 mole) in neutral aqueous medium is disproportionate to     [AIIMS 2003]

A.                 2/3 mole of \[MnO_{4}^{-}\] and 1/3 mole of\[Mn{{O}_{2}}\]
B.                 1/3 mole of \[MnO_{4}^{-}\] and 2/3 mole of \[Mn{{O}_{2}}\]
C.                 1/3 mole of \[M{{n}_{2}}{{O}_{7}}\]and 1/3 mole of \[Mn{{O}_{2}}\]
D.                 2/3 mole of \[M{{n}_{2}}{{O}_{7}}\] and 1/3 mole of \[Mn{{O}_{2}}\]
Answer» B.                 1/3 mole of \[MnO_{4}^{-}\] and 2/3 mole of \[Mn{{O}_{2}}\]


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