Question

how is the purity of a substance checked​

Answer 1

Answer:

Hey mate........... here's your answer

One of the simplest ways to check the purity of any substance is to compare the substance with a certified pure sample. ... If the substance is edible, a taste test can be conducted. A difference between the taste of the substance and the taste of the pure sample hints at the presence of impurities.

Answer 2

Answer:

from litumas paper blue or red