The oxidation state of an element in its combined state is ____________ a) Zero b) +1 c) -1 d) +2
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Answer:
The oxidation number of hydrogen is always +1.
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The oxidation state of an element in its combined state is (a) Zero
Explanation:
1.The oxidation number is defined as the charge in which an atom of an element in its ion or state will appear to have when present in the combined state.This is also called oxidation state or oxidation number.
2.Oxidation number of an atom in the elementary state is zero.It is the number of a monoatomic ion that is equal to the charge on it.
3.compounds which have two different elements, the more electronegative element will have a negative oxidation number whereas the other one will have a positive oxidation number.
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