Identify the formal charges on the marked nitrogen in the following structure :

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$\begin{array}{l} N_{1} = - 1, N_{2} = 0, N_{3} = + 1, N_{4} = + 1 \end{array}$

$\begin{array}{l} N_{1} = 0, N_{2} = + 1, N_{3} = - 1, N_{4} = - 1 \end{array}$

$N_{1} = 0, N_{2} = 0, N_{3} = + 1, N_{4} = - 2$

$\begin{array}{llll} N_{1} = + 1, N_{2} = 0, N_{3} = + 1, N_{4} = - 1 \end{array}$

answer is A.

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Detailed Solution

The formal charges on the marked nitrogen in the following structure is, $N_{1} = 0, N_{2} = 0, N_{3} = + 1, N_{4} = - 2$

An atom's electric charge within a molecule is known as its formal charge (FC).

Formal charge = Total number of valence electrons-(1/2) total number of shared electrons in bonds- total number of unbound electrons

The distribution of electric charge within a molecule can be estimated using formal charge.

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