What is the nature of saliva produced in the mouth by salivary glands?
Neutral
(D) Neutral
pH:
pH is a measure of acidity or basicity of a solution.
Saliva has a pH normal range of 6.2 - 7.6 with 6.7 being the average pH and it can be considered as neutral.
Therefore, the saliva in our mouth is of neutral nature.
Hence, the correct option is (D).