Q: What color does red litmus paper turn in the presence of a base?


Read this paragraph and choose the correct option from the provided answers:

Like strong acids, strong bases can be harmful to organisms and damaging to materials. Bases have a bitter taste and feel slimy to the touch. They can also burn the skin. Bases, like acids, can be identified with litmus paper. Bases turn red litmus paper blue.

 Choices:

- green

- purple

- white

- blue


A:
blue