Match the following species of Column I with information given in Column II choose the correct option from the codes given below. Column I Column II A. BCl3 1. Odd electron molecules B. SF6 2. Incomplete octet C. NO2 3. The expanded octet of central atom Codes : A B C (a) (b) (c) (d) Ans. (a) Sol. [Incomplete octet on central atom] As B contains only-6-electrons (expand octet on central atom) NO2 (odd electron molecule)