Among NH₃, HNO₃, NaN₃ and Mg₃N₂ the number of molecules having nitrogen in negative oxidation state is
(a) 1
(b) 2
(c) 3
(d) 4
Answers
except hno3 all are negative oxidation state of nitroge in nh3 is -3, nan3 is -1/3 and in mg3n2 is -3 so (c) option
The number of molecules having negative oxidation state of nitrogen are 3
Explanation:
Oxidation state is the number that is given to an atom when it looses or gains electron. It is written as a superscript.
For the given chemical compounds:
Let the oxidation state of nitrogen be 'x'
- compound:
Oxidation state of hydrogen = +1
So,
Oxidation state of nitrogen = -3
- compound:
Oxidation state of hydrogen = +1
Oxidation state of oxygen = -2
So,
Oxidation state of nitrogen = +5
- compound:
Oxidation state of sodium = +1
So,
here, the nitrogen is present as azide ion
Oxidation state of nitrogen =
- compound:
Oxidation state of magnesium = +2
So,
Oxidation state of nitrogen = -3
Learn more about oxidation state:
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