Milk is around a 6.4-6.8 on the pH scale, and it is on the acidic side.
universal indicator probably wont show up in milk but i'm guessing its yellowish.
hopefully this answers your question c:
red
Light green.
It turns the universal indicator red
It turns the universal indicator purple or blue.
Universal Indicator is used to test for the acidity of a solution, because the universal indicator has a wider range of pH that it can explain why a substance is acidic or basic.
red
Light green.
The color is blue because magnesia milk is a hydroxide.
The universal Indicator was invented in 1923 by Yamada
It turns the universal indicator red
Universal Indicator Yellow was created in 1993.
Universal Indicator Green was created in 1995.
Universal Indicator Red was created in 1993.
Universal Indicator Blue was created in 1992.
It turns the universal indicator purple or blue.
Universal Indicator is used to test for the acidity of a solution, because the universal indicator has a wider range of pH that it can explain why a substance is acidic or basic.
Universal indicator is just that - an indicator. It is not intended as an accurate measurement system.