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Q. |
Acids turn blue litmus into which color? |
A. | Green |
B. | Red |
C. | Pink |
D. | Colourless |
Answer» B. Red | |
Explanation: Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). |
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