In which of the following reactions can the oxidation number of the nitrogen be said to have increased?

a

2NO(g) + O2(g) → 2NO2(g)

b

2NO(g) + Cl2(g) → 2NOCl(l)

c

FeSO4(aq) + NO(g) → Fe(NO)SO4(s)

d

NO(g) + Br2(l) → 2NOBr(l)

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Explanation

Correct Option
a

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Discussions (18)

nwokogift
3 years ago

A swear JAMB needs strokes of cane imagine 3 answers in one question

lilblessingjnr
9 years ago

Yap, A is correct b/c nitrogen oxidation number increasd from +2 to +4.

vanya
1 year ago

To determine which reaction resulted in the greatest increase in the oxidation number of nitrogen, let's look at the changes in oxidation states more closely:

A: 2NO(g) + O2(g) → 2NO2(g)

Nitrogen goes from +2 in NO to +4 in NO2.

The change is +2.


B: NO(g) + Cl2(g) → NOCl2(l)

Nitrogen goes from +2 in NO to +3 in NOCl2.

The change is +1.


C: FeSO4 + NO(g) → Fe(NO)SO4(s)

Nitrogen stays at +2 in both reactants (NO) and products (Fe(NO)SO4).

The change is 0.


D: NO(g) + Br2(l) → NOBr2(l)

Nitrogen goes from +2 in NO to +3 in NOBr2.

The change is +1.


Conclusion:

The oxidation number of nitrogen increased the most in reaction A, where it increased by +2 (from +2 to +4).

Goodness00000
4 years ago

The one that increased more than the others is considered to b the answer...u get😘

lilblessingjnr
9 years ago

Yap, A is correct b/c hydrogen oxidation number increasd from +2 to +4.

abbaausain
2 years ago

don't mind if answer is B but how about A

Deeneyfaxy
3 years ago

if you are picking B you will also pick D cos they are the same reaction

JoshuaJoshua711
4 years ago

The oxidation number of nitrogen in option B is also from 2 to 4

marlianlawa
2 years ago

The answer is A lol

vanya
1 year ago

incorrect answer

Myschool Nuel
1 year ago

Thank you all for your contributions. Kindly look through the explanation provided above. The question was actually repeated from Year 2001, Question 28.
If you need further clarification, refer to video explanation below:
https://www.youtube.com/watch?v=L3LMarDpyDw

Aklade
1 year ago

the answer is A

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