Which of the following atom has been assigned only single oxidation number?a)Hb)Oc)Nd)FCorrect answer is option 'D'. Can you explain this answer?

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Which of the following atom has been assigned only single oxidation number?

a)
H
b)
O
c)
N
d)
F

Correct answer is option 'D'. Can you explain this answer?

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Verified Answer

Which of the following atom has been assigned only single oxidation nu...

Fluorine is the most electronegative element. It can gain one electron

F+ e^-→ F^-

^{Oxidation number = -1}
Due to very high (IE), it cannot lose electron.
(a) HH^- (-1), (H⁺ (+1)
(b) O -2 in oxide
-1 in peroxide
+2 in OF₂
(c) N - 3 in N₂O₃, NH₃
+3 in HNO₂,
+5 in HNO₃,
+ 1 in N₂O

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Most Upvoted Answer

Which of the following atom has been assigned only single oxidation nu...

Explanation:

When assigning oxidation numbers to atoms in a compound, there are certain rules that need to be followed:

The sum of oxidation numbers in a neutral compound is zero.

The sum of oxidation numbers in a polyatomic ion is equal to the charge of the ion.

Group 1 elements (alkali metals) have an oxidation number of +1.

Group 2 elements (alkaline earth metals) have an oxidation number of +2.

Oxygen usually has an oxidation number of -2.

Hydrogen usually has an oxidation number of +1.

Group 17 elements (halogens) usually have an oxidation number of -1.

Explanation of options:

a) H (Hydrogen):

Hydrogen usually has an oxidation number of +1, but it can also have an oxidation number of -1 in compounds with less electronegative elements.

b) O (Oxygen):

Oxygen usually has an oxidation number of -2, but it can also have positive oxidation numbers in compounds like peroxides (O₂^2-).

c) Nd (Neodymium):

Neodymium is a rare earth element and can have different oxidation numbers depending on the compound it is in. It does not have a single assigned oxidation number.

d) F (Fluorine):

Fluorine is a halogen and usually has an oxidation number of -1. It consistently has this oxidation number and is not known to have any other oxidation numbers.

Therefore, the correct answer is option 'D' (Fluorine) as it has been assigned only a single oxidation number of -1.

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