Blue litmus when added to an acidic solution changes to-

Correct option is A

The correct answer is (a) Red.
· Blue litmus paper is a common pH indicator used to test whether a substance is acidic or basic. When blue litmus paper is added to an acidic solution, it turns red. This color change occurs because the acidic solution increases the concentration of hydrogen ions (H⁺), which react with the dye in the litmus paper, causing the color change.
Information Booster:
· Litmus Paper: Litmus paper is made from lichen extracts and can indicate whether a substance is acidic or basic by changing color. Blue litmus turns red in acidic solutions (pH < 7), while red litmus turns blue in basic solutions (pH > 7).
· Acidic Solutions: Acidic solutions have a pH value less than 7 and contain a higher concentration of hydrogen ions (H⁺), which leads to the red color change in blue litmus paper.