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Solution


Q.

Reduction in pH of blood will                         [2016]
1 decrease the affinity of haemoglobin with oxygen  
2 release bicarbonate ions by the liver  
3 reduce the rate of heartbeat  
4 reduce the blood supply to the brain  

Ans.

(1)


Reduction in pH of blood causes oxygen-haemoglobin dissociation curve to shift to right which indicates dissociation of oxygen from haemoglobin. This decreases affinity of haemoglobin for oxygen.