plz answer this question guys with explanation
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Answer:
3.
Explanation:
since principle quantum number for all elements is same . d is half filled so loosing electron from d it shows oxidation state of +5 when it also lose electron from s orbital then it's oxidation number is +7 ( highest in 3d series of d block)
here shelding effect of d subshell is very weak so electron from s subshell also easily loose.
1. highest oxidation state = 5
2. highest oxidation state = 6
3. highest oxidation state = 7
4. highest oxidation state = 6 because d is not half filled here. 4 electrons from d and 2 from s.oxidation state is 6
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