A universal indicator gives deep red colour in one solution and violet colour in another solution. Which comparison is correct?
Answer and explanation
Correct answer: The first is more acidic and the second is more basic
A universal indicator gives a colour related to pH. Deep red corresponds to a strongly acidic solution with a low pH, whereas violet or purple corresponds to a strongly basic solution with a high pH. Thus the first solution has greater acidic character and the second has greater basic character. Neutral solutions would be near green, and real solutions contain ions; therefore A is correct.
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What is the correct answer to this question?
The first is more acidic and the second is more basic
Why is this the correct answer?
A universal indicator gives a colour related to pH. Deep red corresponds to a strongly acidic solution with a low pH, whereas violet or purple corresponds to a strongly basic solution with a high pH. Thus the first solution has greater acidic character and the second has greater basic character. Neutral solutions would be near green, and real solutions contain ions; therefore A is correct.
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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