WAEC Chemistry 2020 Objective — Question 14
Question 14 of 50 from the West African Examinations Council (WAEC) Chemistry 2020 Objective paper, with the correct answer and a full explanation.
Advertisement
The oxidation state of chlorine in ClO3- is
- A. +1
- B. +3
- C. +5Correct
- D. +6
Explanation
Let the oxidation state of chlorine in NaClO3 be x. Na=+1, O=-2. +1+x+(-2x3)=0. 1+x-6=0. x-5=0, x=+5.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.