Turmeric turns reddish-brown in a solution. What property does this solution have?
Answer and explanation
Correct answer: Basic property
Turmeric contains curcumin, which acts as a natural indicator. In an acidic or neutral medium it generally remains yellow, whereas in a basic medium it develops a reddish-brown colour. Observing this colour change therefore indicates that the tested solution is basic. The result does not show metallic character, and it is inconsistent with a purely neutral or acidic solution under the stated indicator test. Hence option C is correct.
Frequently asked questions
What is the correct answer to this question?
Basic property
Why is this the correct answer?
Turmeric contains curcumin, which acts as a natural indicator. In an acidic or neutral medium it generally remains yellow, whereas in a basic medium it develops a reddish-brown colour. Observing this colour change therefore indicates that the tested solution is basic. The result does not show metallic character, and it is inconsistent with a purely neutral or acidic solution under the stated indicator test. Hence option C 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.
