Dissociation of $CO_{2}$ from carbamino haemoglobin takes place when

  • A
    $pCO_{2}$ is less in alveoli and $pO_{2}$ is high
  • B
    $pCO_{2}$ is low and $pO_{2}$ is high in alveoli
  • C
    $pCO_{2}$ is equal to $pO_{2}$ in lungs,i.e.,low
  • D
    $pCO_{2}$ is equal to $pO_{2}$ in tissue,i.e.,high

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