The molecule is composed of two nitrogen atoms above and below the plane of four carbon atoms to which four hydrogen atoms are attached.
What is Lewis structure?
The Lewis structure shows the arrangement of electrons in atoms of molecules. The molecule C4H4N2 is called pyrazine. It is composed of two nitrogen atoms above and below the plane of four carbon atoms to which four hydrogen atoms are attached.
The structure of the molecule C4H4N2 in which formal charges are minimized is shown in the image attached to this answer.
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