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JAMB Chemistry 2024 Question 17

Question 17

Redox Reactions

Write out the values of a, b and c respectively in the equation. aCu + bHNO3 → aCu(NO3)2 + 4H2O + cNO

  1. A.3:8:2
  2. B.4:1:2
  3. C.8:3:2
  4. D.2:8:3
Show the answer and explanation

Answer: A (3:8:2)

Explanation

The balanced equation is 3Cu + 8HNO3 → 3Cu(NO3)2 + 4H2O + 2NO, so a = 3, b = 8, c = 2.