12. how many lone pairs of electrons are on the central atom in the lewis structure of hcn? a. 0 b. 2 c. 3…
12. how many lone pairs of electrons are on the central atom in the lewis structure of hcn? a. 0 b. 2 c. 3 d. 1 e. 4
Answer
Explanation:
Step1: Determine central atom
In HCN, carbon (C) is the central atom.
Step2: Draw Lewis structure
H - C ≡ N. Carbon forms a single - bond with hydrogen and a triple - bond with nitrogen.
Step3: Count lone pairs on central atom
Carbon has no lone pairs of electrons.
Answer:
a. 0