If a solution shows pH 13, what precaution is correct while handling it?
Answer and explanation
Correct answer: Use safety equipment like gloves and goggles
The governing concept is the relation between pH and corrosive hazard. A pH of 13 indicates a strongly basic solution, with a very low hydrogen-ion concentration and substantial hydroxide activity. Such a solution may irritate or burn skin and seriously damage eyes. Gloves, goggles, careful labelling, and approved handling procedures are therefore required. Option A is correct; tasting, direct contact, and beverage storage are unsafe.
Frequently asked questions
What is the correct answer to this question?
Use safety equipment like gloves and goggles
Why is this the correct answer?
The governing concept is the relation between pH and corrosive hazard. A pH of 13 indicates a strongly basic solution, with a very low hydrogen-ion concentration and substantial hydroxide activity. Such a solution may irritate or burn skin and seriously damage eyes. Gloves, goggles, careful labelling, and approved handling procedures are therefore required. Option A is correct; tasting, direct contact, and beverage storage are unsafe.
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.
