1.

In which substance does nitrogen exhibit the lowest oxidation state ?

Answer»

Nitrogen gas
Ammonia
NITROUS oxide
NITRIC oxide

Solution :Oxidation state of nitrogen gas `(N_(2))` is zero, as both the nitrogen atom possess same ELECTRONEGATIVITY as well as same number of electrons. The oxidation states of ammonia. Nitrous oxide and nitric oxide are given below Ammonia `(NH_(3))`
`x=3(1)=0`
`x=-3`
Nitrous oxide `(N_(2)O)`
`2(x)+1(-2)=0`
`2x=2`
`x=+1`
Nitric oxide (NO)
`x+(-2)=0`
`x=+2`
Thus, nitrogen exhibits LOWEST oxidation state in case of ammonia


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