Question

When a blue litmus paper is dipped in a solution, it remains blue. What can be concluded about this solution?

• A. Th solution is neutral.
• B. The solution is basic or neutral.
• C. The solution is acidic or neutral.
• D. None of the above.

Answer 1

The correct option is B The solution is basic or neutral.

Litmus paper is used for the identification of an acidic or basic solution. When it is dipped in a solution, its colour changes(or doesn't changes) indicating the nature of the solution.

Solution Colour of Litmus

Acidic solution Red remains red, blue changes to red

Basic solution Blue remains blue, red changes to blue

Neutral solution No change in colour (Red/ Blue)

Thus, we conclude that the given solution is basic or neutral in nature because the litmus paper colour remains blue after dipping the solution.