Question

If the given solution turns blue litmus paper red, then the solution is

• A. acidic
• B. basic
• C. neutral
• D. red

Answer 1

The correct option is A

acidic

Explanation for the correct option-

(A) Acidic:

Indicators - These are special types of chemicals used to determine the nature of the given substance.

Effect of chemicals on litmus -

• The acidic solution turns blue litmus red.
• The basic solution turns red litmus blue.
• Neutral solutions have no effect on litmus.
• Now, it is given that the given solution turns blue litmus paper red, then the solution will be acidic.

Explanation for the incorrect options-

(B) Basic - Basic solution will turn red litmus blue.

(C) Neutral - Neutral solution has no effect on litmus.

(D) Red - The litmus turns red when dipped into an acidic solution.

Hence, option (A) is correct. If the given solution turns blue litmus paper red, then the solution is acidic.