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Buffers react with _______________ ions.

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Buffers react with _______________ ions.

(a) hydrogen, hydroxyl

(b) magnesium, calcium

(c) potassium

(d) sodium

I have been asked this question in an international level competition.

I'm obligated to ask this question of Chemical Basis of Life in division Chemical Basis of Life of Cell Biology

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Right choice is (a) hydrogen, hydroxyl

For explanation: Buffers react with free hydrogen and free hydroxyl ions resisting changes in the pH and protecting cells and solutions from destroying. Buffers are also routinely used in laboratories.

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