SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Acids
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Bases
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All
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None of the above
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Detailed explanation-1: -The material is tested using litmus paper, which turns red if it’s acidic and blue if it’s alkaline, or basic. Litmus paper is red when the pH is less than 4.5 and blue when the pH is greater than 8.3.
Detailed explanation-2: -The main use of litmus is to test whether a solution is acidic or basic, as 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). Neutral litmus paper is purple.
Detailed explanation-3: -Q. Litmus turns red in an acidic solution and blue in a basic solution.
Detailed explanation-4: -So, Acids turn blue litmus red whereas bases turn red litmus blue.