What is the chemical reason for avoiding storage of curd in copper or brass vessels?
Answer and explanation
Correct answer: Acids in curd can react with the metal to form harmful salts
Curd contains lactic acid, so it is mildly acidic. If it remains in contact with copper or brass, the acid may slowly react with the metal surface and produce dissolved metal compounds or salts. In excessive or unsuitable exposure, such contamination can make the food unsafe, which is why reactive metal vessels are avoided for acidic foods. A is correct; B and C describe no valid general reaction, and D is false because curd does contain acid.
Frequently asked questions
What is the correct answer to this question?
Acids in curd can react with the metal to form harmful salts
Why is this the correct answer?
Curd contains lactic acid, so it is mildly acidic. If it remains in contact with copper or brass, the acid may slowly react with the metal surface and produce dissolved metal compounds or salts. In excessive or unsuitable exposure, such contamination can make the food unsafe, which is why reactive metal vessels are avoided for acidic foods. A is correct; B and C describe no valid general reaction, and D is false because curd does contain acid.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
