If a basic substance is highly soluble in water and can burn skin, how should it be used in the laboratory?
Answer and explanation
Correct answer: With safety equipment and care
The governing concept is laboratory safety when handling a soluble, corrosive base. A strong base can damage skin and eyes, and dissolving some bases in water releases heat; therefore direct contact and careless mixing are unsafe. The substance should be handled with gloves, eye protection, suitable tools, clear labelling, and controlled procedures. Option B is correct. Eating it or storing it without a label creates additional hazards, while bare-hand use ignores its caustic nature.
Frequently asked questions
What is the correct answer to this question?
With safety equipment and care
Why is this the correct answer?
The governing concept is laboratory safety when handling a soluble, corrosive base. A strong base can damage skin and eyes, and dissolving some bases in water releases heat; therefore direct contact and careless mixing are unsafe. The substance should be handled with gloves, eye protection, suitable tools, clear labelling, and controlled procedures. Option B is correct. Eating it or storing it without a label creates additional hazards, while bare-hand use ignores its caustic nature.
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.
