Question Detail
Question
Determine the oxidation number of carbon in K₂CO₃
Correct Answer
Option C is the correct answer.
Detailed Explanation
K is +1, O is -2. Let C = x. 2(+1) + x + 3(-2) = 0 → 2 + x - 6 = 0 → x = +4.
Hint
Sum of oxidation numbers in a neutral compound is zero.