Question

A researcher is trying to identify whether household substances are basic. Which approach would BEST help the researcher

investigate whether substances are basic?

A. Test each substance with red litmus paper.

B. Test each substance with blue litmus paper.

C. Observe each substance and record its color.

D. Mix each substance with a weak base and record the results.

Answer 1

a

Step-by-step explanation:

because red litmus paper turn blues under base or alkaline condition