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【单选题】
酸根离子与过氧化氢在酸性溶液中反应。得到 Mn ( II )盐,同时释放出氧气, 问下列反应式正确的是:
A.
2MnO - 4 + H 2 O 2 + 6H + ⇌ 2Mn 2+ + 3O 2 + 4H 2 O
B.
2MnO 4 - + 3H 2 O 2 + 6H + ⇌ 2Mn 2+ + 4O 2 + 6H 2 O
C.
2MnO 4 - + 5H 2 O 2 + 6H + ⇌ 2Mn 2+ + 5O 2 + 8H 2 O
D.
2MnO 4 - + 7H 2 O 2 + 6H + ⇌ 2Mn 2+ + 6O 2 + 10H 2 O
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