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Buffers — Definition & Overview

Practice problem

Buffers — Definition & Overview

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Hydrocyanic acid (HCN) is shown above. Which of the following options is the conjugate base of HCN?

Choose one answer

Option A: A

CH $^-$

Option B: B

CH $_2$ $^-$

Option C: C

CN $^-$

Option D: D

HCN $^-$

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