Chemistry-Properties of d-block
NEET Chemistry Properties of d-block MCQ Question
Type: MCQ-numerical-Hard-Class 12
Calculate the number of moles of permanganate ions produced when 0.5 moles of manganese (II) ions are oxidised by peroxodisulphate in acidic solution.
A
0.5 moles
B
0.2 moles
C
0.1 moles
D
0 moles
Correct Answer
Option A
Detailed Explanation
From the balanced chemical equation 2Mn 2+ + 5S 2 O 8 2– + 8H 2 O → 2MnO 4 – + 10SO 4 2– + 16H +, 2 moles of Mn 2+ produce 2 moles of MnO 4 –. Therefore, 0.5 moles of Mn 2+ will produce 0.5 moles of MnO 4 –.
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