Methyl orange appears red in acidic solution and yellow in basic solution. What is this property used for?
Answer and explanation
Correct answer: To identify acidic or basic nature of a solution
Methyl orange is an acid-base indicator. Its molecular form and ionic form have different colours, so the observed colour changes with the acidity of the solution. Red indicates an acidic medium, while yellow indicates a basic or less acidic medium in the simplified school-level description. This makes it useful for identifying the nature of a solution and for titration observations. Therefore A is correct; the other choices are unrelated.
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What is the correct answer to this question?
To identify acidic or basic nature of a solution
Why is this the correct answer?
Methyl orange is an acid-base indicator. Its molecular form and ionic form have different colours, so the observed colour changes with the acidity of the solution. Red indicates an acidic medium, while yellow indicates a basic or less acidic medium in the simplified school-level description. This makes it useful for identifying the nature of a solution and for titration observations. Therefore A is correct; the other choices are unrelated.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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