Which among the following pairs constitutes a | vedclass

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(C) buffer solution consists of a mixture of a weak acid and its salt with a strong base,or a weak base and its salt with a strong acid.$LiOH$ is a st

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$HNO_2$ and $NaNO_2$

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(C) buffer solution consists of a mixture of a weak acid and its salt with a strong base,or a weak base and its salt with a strong acid.$LiOH$ is a strong base,while $HNO_3$ and $HBr$ are strong acids.$HNO_2$ is a weak acid and $NaNO_2$ is its salt formed by the combination of the weak acid $(HNO_2)$ and a strong base $(NaOH)$.Therefore,the pair $(HNO_2 + NaNO_2)$ constitutes an acidic buffer.

Which among the following pairs constitutes a buffer?

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