Question

how to find formal charge in organic chemistry?

Answer 1

The formula for formal charge is,

Formal charge = [# of valence electrons] – [electrons in lone pairs + 1/2 the number of bonding electrons]

Answer 2

I can show you a few examples

For example
formal charge of B in BH4

So formal charge = 3 – (0 + 4) = 3 – 4 = –1

The formal charge of B in BH4 is negative 1.

Answer 3

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