Answer: The correct answer is Option A.
Explanation:
Litmus paper is defined as the indicator which is used to determine the nature of the solution, whether it is acidic or basic.
Two types of litmus paper are:
- Red litmus paper: This paper will turn blue if it is dipped in basic solution and it remains as such if it is dipped in acidic solution.
- Blue litmus paper: This paper will turn red if it is dipped in acidic solution and remains as such if it is dipped in basic solution.
When this paper is dipped in neutral solution, the litmus paper (whether it is red or blue) will remain as such.
Hence, the correct answer is Option A.
