What nature is shown by violet colour of universal indicator?
Answer and explanation
Correct answer: Strongly basic
The universal indicator scale changes towards violet as pH becomes very high. A high pH means the solution is strongly basic, with a relatively high hydroxide-ion concentration compared with hydrogen ions. Therefore option C is correct. Acidic solutions occur at the low-pH, red end of the scale, and a neutral solution is near pH 7 and green, so neither A, B, nor D fits violet.
Frequently asked questions
What is the correct answer to this question?
Strongly basic
Why is this the correct answer?
The universal indicator scale changes towards violet as pH becomes very high. A high pH means the solution is strongly basic, with a relatively high hydroxide-ion concentration compared with hydrogen ions. Therefore option C is correct. Acidic solutions occur at the low-pH, red end of the scale, and a neutral solution is near pH 7 and green, so neither A, B, nor D fits violet.
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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