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Question
Consider the elements: Cs, Ne, I and F
Identify the element that exhibits both positive and negative oxidation states.
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Solution
I exhibits both positive and negative oxidation states. It exhibits oxidation states of – 1, + 1, + 3, + 5, and + 7.
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| Column I | Column II | |
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| (ii) | The sum of oxidation number of all atoms in a neutral molecule |
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| (iii) | Oxidation number of hydrogen ion \[\ce{(H+)}\] | (c) +1 |
| (iv) | Oxidation number of fluorine in \[\ce{NaF}\] | (d) 0 |
| (v) | Ions having negative charge | (e) Cation |
| (f) Anion |
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