What nature is shown by red colour of universal indicator?
Answer and explanation
Correct answer: Acidic
Universal-indicator colour is governed by the pH of the tested solution. Red is found at the low-pH end of the indicator scale, where the concentration of hydrogen ions is relatively high. A low pH means acidic nature, so option A is correct. A neutral solution is represented near green, basic solutions move through blue shades, and “soapy” describes a possible substance rather than a precise indicator classification.
Frequently asked questions
What is the correct answer to this question?
Acidic
Why is this the correct answer?
Universal-indicator colour is governed by the pH of the tested solution. Red is found at the low-pH end of the indicator scale, where the concentration of hydrogen ions is relatively high. A low pH means acidic nature, so option A is correct. A neutral solution is represented near green, basic solutions move through blue shades, and “soapy” describes a possible substance rather than a precise indicator classification.
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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