A question suggests using only taste to identify acids, bases, and salts. What is the most correct response from an exam point of view?
Answer and explanation
Correct answer: It is unsafe and indicators or pH paper should be used
The governing laboratory-safety principle is never to taste an unknown chemical. Acids and bases may be corrosive or poisonous, and even a small amount can injure the mouth or internal organs. Identification should instead use safe tests such as litmus, a universal indicator, or pH paper, following proper instructions. Thus option A is correct; taste cannot provide an exact pH and indicators are specifically designed for this purpose.
Frequently asked questions
What is the correct answer to this question?
It is unsafe and indicators or pH paper should be used
Why is this the correct answer?
The governing laboratory-safety principle is never to taste an unknown chemical. Acids and bases may be corrosive or poisonous, and even a small amount can injure the mouth or internal organs. Identification should instead use safe tests such as litmus, a universal indicator, or pH paper, following proper instructions. Thus option A is correct; taste cannot provide an exact pH and indicators are specifically designed for this purpose.
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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