Question

1B). In the presence of potassium hydroxide (ROH):
a)blue litmus paper turns pink
c)blue litmus paper becomes darker
b)pink litmus paper turns blue
d)pink litmus paper does not change​

Answer 1

Answer:

(a) Blue litmus paper turns pink

Explanation:

it's the answer

Answer 2

Answer:

The correct option is (b) Pink litmus turns blue.

Explanation:

Litmus paper is an indicator that changes color in presence of acid or base.

• In the presence of an acid, the blue litmus paper turns red.
• In the presence of a base, the red litmus paper turns blue.
• In a neutral medium, the litmus paper shows purple color.
• If we introduce a pink litmus paper to potassium hydroxide, it will turn blue because potassium hydroxide is basic in nature.

Conclusion:

In presence of potassium hydroxide ($KOH$) the pink litmus paper turns blue.