What will be the outcome of putting litmus paper into milk? a. red paper turns blue, blue paper turns red b. red paper turns blue, blue paper does not change c. red paper does not change, blue paper turns red d. red paper does not change, blue paper does not change

C

Explanation:

The litmus paper have an reaction with the compound, if the compound is acid (pH lower than 7), the red paper will remain red and the blue paper will turn to red, and if the compound is bacis (pH higher than 7), the red paper will turn blue and the blue paper will remain blue.

As the milk has a pH lower than 7, we can affirm that the red paper will not change and the blue papper will turn red.

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.