If the effects of hydrogen and hydroxide ions in a solution are approximately balanced, what colour will a universal indicator show?
Answer and explanation
Correct answer: Green
When hydrogen-ion and hydroxide-ion effects are approximately balanced, the solution is nearly neutral. Its pH is close to 7 because neither acidic nor basic character predominates. Universal indicator displays green around neutral pH. Red and orange indicate acidic conditions, whereas violet indicates a strongly basic condition. Therefore option A, green, is the correct answer.
Frequently asked questions
What is the correct answer to this question?
Green
Why is this the correct answer?
When hydrogen-ion and hydroxide-ion effects are approximately balanced, the solution is nearly neutral. Its pH is close to 7 because neither acidic nor basic character predominates. Universal indicator displays green around neutral pH. Red and orange indicate acidic conditions, whereas violet indicates a strongly basic condition. Therefore option A, green, is the correct answer.
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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