Question

Which of the following statements is true for acids?

• A. Bitter and change red litmus to blue
• B. Sour and change red litmus to blue
• C. Sour and change blue litmus to red
• D. Bitter and change blue litmus to red

Answer 1

The correct option is C

Sour and change blue litmus to red

The explanation for the correct options:

(C)Sour and change blue litmus to red.

• Litmus is a synthetic indicator.
• Acids have a sour flavour and turn the blue litmus test into a red colour.

The explanation for the incorrect options:

(A)Bitter and change red litmus to blue.

• Bases have a bitter flavour.
• Red litmus is turned blue by bases.

(B)Sour and change red litmus to blue.

• The acid has a sour flavour.
• Using acids, red litmus has no change on it.

(D) Bitter and change blue litmus to red.

• Acids have a sour flavour.
• Acids turn blue litmus paper crimson.

Hence, option (C) is correct., sour and changing blue litmus to red is true for acids.