Question

which of the two will change the colour of red litmus solution in to blue​

Answer 1

Explanation:

base change the red litmus blue.

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Answer 2

Answer:

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). ... For instance, ammonia gas, which is alkaline, turns red litmus paper blue.

this is the correct answer