MCQ
Green coloured compounds possess _______________ ion.
- ✓$MnO _4^{2-}$
- B$Cr _2 O _7^{2-}$
- C$MnO _4^{-}$
- D$CrO _4^{2-}$
✓
Answer
Correct option: A.
$MnO _4^{2-}$
A
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