An increase in $P_{50}$ of an oxyhaemoglobin curve would result from a decrease in.

Oxygen

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Metabolism

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Temperature

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Solution

The correct option is A pH
The P₅₀ represents the partial pressure at which hemoglobin is 50 percent saturated with oxygen.
Normal P₅₀ is 27 mm Hg
P₅₀ provides a means of quantifying the hemoglobin's affinity (willingness to bond) with oxygen. Reflects what are called shifts of the dissociation curve.
When there is a decrease in pH ( acidic environment) , the oxygen dissociation curve shifts towards Right – hemoglobin has decreased affinity, increased P₅₀ – takes more oxygen to reach 50% (higher partial pressure to get 50% saturated)
So, the correct answer is 'pH'

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An increase in P50 of an oxyhaemoglobin curve would result from a decrease in.

An increase in $P_{50}$ of an oxyhaemoglobin curve would result from a decrease in.