Which of the following pairs of ions will react to form a white precipitate?
-
Na⁺ and Cl⁻
-
Ba²⁺ and SO₄²⁻
-
K⁺ and NO₃⁻
-
H⁺ and OH⁻
📝 Detailed explanation
Barium sulfate (BaSO₄) is an insoluble white solid formed during an ion-exchange reaction. The other pairs remain in solution or form water.
← Previous
→ Next
Space — Show answer
🎯 Take a test on the topic «Variant #5 of the University Scholarship Examination»
This topic contains 49 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 →
