MCAT General Chemistry Question 154: Answer and Explanation
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Question: 154
4. What is the oxidation number of chlorine in NaClO?
- A. -1
- B. 0
- C. +1
- D. +2
Correct Answer: C
Explanation:
In NaClO (sodium hypochlorite), sodium carries its typical +1 charge, and oxygen carries its typical -2 charge. This means that the chlorine atom must carry a +1 charge in order to balance the overall charge of zero.