Question

How to draw Lewis Structure for HCN?

Answer 1

Here's how to do it.

Explanation:

Step 1. Draw a skeleton structure

Put the least electronegative atom `"C"` in the middle with `"H"` and `"Cl"` on either side.

`"H-C-N"`

Step 2. Count the valence electrons you can use

`"H + C + N =1 + 4 + 5 = 10"`

Step 3. Add these electrons to give every atom an octet

You nave to put a triple bond between `"C"` and `"N"`.