What colour does methyl orange give in an acidic solution?
Answer and explanation
Correct answer: Red
Methyl orange is an acid-base indicator that changes colour over an acidic-to-neutral pH range. In an acidic solution, it appears red; as the solution becomes less acidic and then basic, the colour changes through orange toward yellow. Thus option A is correct. Yellow is associated with the basic-side response, while green and blue are not the characteristic colours used here for an acidic methyl-orange test.
Frequently asked questions
What is the correct answer to this question?
Red
Why is this the correct answer?
Methyl orange is an acid-base indicator that changes colour over an acidic-to-neutral pH range. In an acidic solution, it appears red; as the solution becomes less acidic and then basic, the colour changes through orange toward yellow. Thus option A is correct. Yellow is associated with the basic-side response, while green and blue are not the characteristic colours used here for an acidic methyl-orange test.
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.