What nature is indicated by violet colour in universal indicator?
Answer and explanation
Correct answer: Strongly basic
The universal-indicator colour scale progresses from red at low pH through green near pH 7 to blue and violet at high pH. Violet therefore represents a very high pH and a strongly basic solution. Option C is correct. Acidic and slightly acidic solutions have pH below 7 and appear toward the red or orange side, while a neutral solution is represented near green, so options A, B, and D are unsuitable.
Frequently asked questions
What is the correct answer to this question?
Strongly basic
Why is this the correct answer?
The universal-indicator colour scale progresses from red at low pH through green near pH 7 to blue and violet at high pH. Violet therefore represents a very high pH and a strongly basic solution. Option C is correct. Acidic and slightly acidic solutions have pH below 7 and appear toward the red or orange side, while a neutral solution is represented near green, so options A, B, and D are unsuitable.
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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