Question

You are provided with three test tubes A, B and C as shown in figure with different liquids. What will you observe when you put:
(a) a piece of blue litmus paper in each test tube?
(b) a piece of red litmus paper in each test tube?
(c) a few drops of phenolphthalein solution to each test tube?

Answer 1

Answer:

1. In solution A, blue litmus paper will turn into red as it is acid.

In solution B, blue litmus paper will be blue as it is basic in nature

In solution C, blue litmus paper will turn purple as it  is neutral

2.  In solution A, Red litmus paper will be red as it is acid.

In solution B, red litmus paper will turn blue as it is basic in nature.

In solution C, red litmus paper will turn purple as it  is neutral