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Question
K1 and K2 for oxalic acid are 6.5×10⁻² and 6.1×10⁻⁵ respectively. What will be the [OH⁻] in a 0.01M solution of sodium oxalate?
Options:
A .  9.6×10⁻⁶
B .  1.4×10⁻¹
C .  1.2×10⁻⁶
D .  1.3×10⁻⁸
Answer: Option C
Answer: (c).1.2×10⁻⁶

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