Which one of the following is a reversible reaction?

1.	Which one of the following is a reversible reaction?
Answer» Ripening of a banana Rusting of iron Tarnishing of uilver Transport of OXYGEN by Hemoglobin in our body Solution :All the other THREE REACTIONS are irreversible reactions.But the HAEMOGLOBIN combines with `O_(2)` in lungs to form oxyhemoglonbin.The OXYHEMOGLOBIN has a tendency to form hemoglobin by releasing `O_(2)`.So it is a reversible reaction.

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