Lesson: Chapter 7 — Acids, bases and salts

7.2. Bases 4 of 5 Reset answers

Clear all your answers?

This erases every answer in this set and starts you again at question one. Your score will be gone.

Type these four numbers to confirm:

Those numbers don't match. Look at them again and type them.

Yes, clear Keep them

Question 4

What colour does a base turn red litmus?

A Yellow B Pink C It stays red D Blue

The right answer is the one marked above.

Blue. This is a simple test for a base.

Answer the question to continue.