Question

write one use of blue litmus paper​

Answer 1

Answer:

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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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Answer 2

Answer:

litmus paper changes:-

✏️Blue litmus paper is prepared by impregnating white paper in an infusion of the litmus mixture mentioned above

✏️. The paper is then carefully dried in open air. Red litmus is similarly prepared but a small percentage of sulfuric or hydrochloric acid is added to cause it to turn red.

uses of litmus paper:-

✏️The main use of litmus is to test whether a solution is acidic or basic

✏️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).