Which of the following elements is stored under oil because it reacts violently with moisture in the air?
-
Copper
-
Aluminum
-
Sodium
-
Iron
📝 Detailed explanation
Sodium (an alkali metal) is highly reactive with water and oxygen; oil prevents it from coming into contact with air or moisture.
← Previous
→ Next
Space — Show answer
🎯 Take a test on the topic «Variant #4 of the University Scholarship Examination»
This topic contains 50 questions.
Test your knowledge!
🔐 Log in to take the test
📚 All tests by subject «Bio+Chem»
View all collections and topics in Bio+Chem
Go to subject →
