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a
decrease the affinity of haemoglobin with oxygen
b
release bicarbonate ions by the liver
c
reduce the rate of heart beat
d
reduce the blood supply to the brain.
answer is A.
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Detailed Solution
Reduction in pH of blood will decrease the affinity of haemoglobin with oxygen. Reduction of pH occurs when H+concentration increases. When haemoglobin binds to H+, it unloads oxygen (Bohr effect) in the tissues, low pO2, high pCO2, high H+ concentration (low pH) and higher temperature favour the dissociation of oxygen from the oxyhaemoglobin.