If a student says acids should be identified only by taste, why is this method wrong?
Answer and explanation
Correct answer: Because many acids are harmful and indicators are safer
The governing principle is laboratory safety and objective testing. Some acids are corrosive, poisonous, or harmful to body tissues, so tasting an unknown substance can cause injury and is never an acceptable identification method. Indicators, pH paper, and controlled chemical tests provide safer evidence of acidic behaviour. Acids can have tastes, so B is false; taste cannot measure pH reliably, and indicators are not limited to metals. Hence A is correct.
Frequently asked questions
What is the correct answer to this question?
Because many acids are harmful and indicators are safer
Why is this the correct answer?
The governing principle is laboratory safety and objective testing. Some acids are corrosive, poisonous, or harmful to body tissues, so tasting an unknown substance can cause injury and is never an acceptable identification method. Indicators, pH paper, and controlled chemical tests provide safer evidence of acidic behaviour. Acids can have tastes, so B is false; taste cannot measure pH reliably, and indicators are not limited to metals. Hence 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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