$\"\"$

The $\"\"$ of a person’s blood is $\"\"$ .

where

$\"\"$ is the concentration base of bicarbonate in the blood.

$\"\"$ is the concentration of carbonic acid in the blood.

F lemon juice

G baking soda

H milk

J ammonia

Find which substance has a $\"\"$ closest to blood.

Concentration base of bicarbonate in the blood is $\"\"$ .

Concentration of carbonic acid in the blood $\"\"$ .

Substitute $\"\"$ and $\"\"$ in above equation.

$\"\"$

Change of base formula is $\"\"$ .

$\"\"$

Property of logarithm : $\"\"$ .

$\"\"$

The $\"\"$ of a milk is $\"\"$ , the milk $\"\"$ is closest to person’s blood.

Correct choice is H milk.

$\"\"$

Correct choice is H.