Red + blue litmus paper when dipped in neutral solution remain ______?
Red + blue litmus paper when dipped in neutral solution remain ______?
جب غیر جانبدار حل میں ڈوبا ہوا ہو تو سرخ + بلیو لیٹمس پیپر ______؟
Explanation
A neutral solution (pH 7) does not affect litmus paper, so both red and blue litmus remain unchanged.
Litmus paper changes color only in acidic (red) or basic (blue) solutions.