Answer:
b.+1
Explanation:
Sulfate ([tex]CH_3NO_2[/tex])
Valence electrons of carbon = 4
Valence electrons of oxygen = 6
Valence electron of nitrogen = 5
Valence electron of hydrogen = 1
The total number of the valence electrons = 4 + 2(6) + 3(1) + 5 = 24
The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So, The Lewis structure is shown in image below.
Formula for formal charge :
[tex]\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}[/tex]
Formal charge for nitrogen:
[tex]\text{Formal charge}=5-0-\frac{8}{2}=+1[/tex]
Nitromethane is an organic compound that is a nitro compound and is used as a cleaning solvent and in extraction reactions. The formal charge on nitrogen in Nitromethane is +1.
The difference of the valence electrons, non-bonding electrons and half of the bonded electrons shared in the compound is called formal charge. The formula of Nitromethane is, [tex]\rm CH_{3}NO_{2}.[/tex]
The number of the valence electrons of the atoms in the compound is:
The total number of the valence electrons are:
[tex]4 + 2(6) + 3(1) + 5 = 24[/tex]
In the lewis structure of the Nitromethane octet of each atom is complete and the formal charges can be shown as,
[tex]\begin{aligned}\text{Formal charge} &= \rm Valence \;electrons - \rm Non-bonding\; electrons - \dfrac{ \rm Bonding \;electrons}{2}\\\\&= 5 - 0 - \dfrac {8}{2}\\\\&= +1 \end{aligned}[/tex]
Therefore, the formal charge on nitrogen in Nitromethane is option b. +1.
Learn more about formal charge here:
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