Why does methyl orange show different colours in acidic and basic media?
Answer and explanation
Correct answer: Because it is an indicator and changes colour with the medium
Methyl orange is an acid-base indicator. Its molecular structure changes as the hydrogen-ion concentration of the medium changes, producing different colours: it is generally red in an acidic solution and yellow in a basic or sufficiently neutral solution, with an orange transition range. Therefore its colour provides evidence about the nature of the medium; it is not a gas-forming or metal-producing substance.
Frequently asked questions
What is the correct answer to this question?
Because it is an indicator and changes colour with the medium
Why is this the correct answer?
Methyl orange is an acid-base indicator. Its molecular structure changes as the hydrogen-ion concentration of the medium changes, producing different colours: it is generally red in an acidic solution and yellow in a basic or sufficiently neutral solution, with an orange transition range. Therefore its colour provides evidence about the nature of the medium; it is not a gas-forming or metal-producing substance.
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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