A student suggests identifying an acidic solution by taste. Why is this suggestion unacceptable in the laboratory?
Answer and explanation
Correct answer: Many acids are harmful and indicators are safer
Laboratory safety requires that chemicals must never be tasted because even a small quantity of an acid may be corrosive, poisonous, or contaminated. The correct approach is to use an indicator, pH paper, or an instrument under proper supervision. Therefore option A is correct. Acids may have tastes, but taste cannot safely or accurately identify them; indicators can be used for both acidic and basic solutions.
Frequently asked questions
What is the correct answer to this question?
Many acids are harmful and indicators are safer
Why is this the correct answer?
Laboratory safety requires that chemicals must never be tasted because even a small quantity of an acid may be corrosive, poisonous, or contaminated. The correct approach is to use an indicator, pH paper, or an instrument under proper supervision. Therefore option A is correct. Acids may have tastes, but taste cannot safely or accurately identify them; indicators can be used for both acidic and basic solutions.
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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