What is the colour of methyl orange indicator in an acidic solution?
Answer and explanation
Correct answer: Red
Methyl orange is an acid-base indicator whose colour depends on the hydrogen-ion concentration of the solution. In an acidic medium it appears red, and as the medium becomes less acidic or basic it changes through orange toward yellow. Therefore red is correct. Yellow describes its alkaline range, while green and blue are not the standard colours for this indicator.
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 whose colour depends on the hydrogen-ion concentration of the solution. In an acidic medium it appears red, and as the medium becomes less acidic or basic it changes through orange toward yellow. Therefore red is correct. Yellow describes its alkaline range, while green and blue are not the standard colours for this indicator.
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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