The option(s) in which at least three molecules follow Octet Rule is(are)

Step-by-step solution

Option A: ( CO ₂, C ₂ H ₄, NO ) and HCl 1. ( CO ₂ ) : Carbon dioxide follows the octet rule. Carbon forms double bonds with two oxygen atoms, allowing it to have 8 electrons in its valence shell. 2. ( C ₂ H ₄ ) : Ethylene follows the octet rule. Each carbon forms a double bond with the other carbon and single bonds with two hydrogen atoms, resulting in 8 electrons in the valence shell of the carbons. 3. NO: Nitric oxide does not follow the octet rule. It has an odd number of electrons, making it a free radical. 4.