Determine the oxidation state of Chromium in the compound K₂Cr₂O₇.

  1. +3
  2. +6
  3. +7
  4. +4

📝 Detailed explanation

2(+1) + 2(x) + 7(-2) = 0
2 + 2x - 14 = 0 => 2x = 12 => x = +6.
27 / 30 (90%)
Question 27 of 30
← Previous → Next Space — Show answer

🎯 Take a test on the topic «CAU Admission Test Sample Questions 8»

This topic contains 30 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 →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email