Question

them.
You already know that acids are sour in taste
of blue litmus to red, whereas, bases are bitter a
the red litmus to blue. Litmus is a natural indica
such indicator. Have you noticed that a stain o
becomes reddish brown when soap, which is bas
on it? It turns yellow again when the cloth is
water. You can also use synthetic indicators su
phenolphthalein to test for acids and bases.
In this Chapter, we will study the reactions
acids and bases cancel out each other's effects a
av​

Answer 1

Answer:

sorry did not understood it ....