Multiple choice

Exceptions of octet rule are:

  1. AlCl3, CCl4, SF6, PCl5

  2. BCl3, NF3, SF6, PCl3

  3. BeCl2, BCl3, SF4, NH3

  4. BeCl2, BF3, SF6, PCl5

  5. NF3, BF3, SF4, PCl3

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

BeCl2 : 4 electron in valence shell of Be ( incomplete octet) BF3 : 6 electrons is valence shell of B (incomplete octet) SF6 : 12 electrons in valence shell of S (expanded octet). PCl5 : 10 electrons in valence shell of P (expanded octet). All are exceptions of octet rule.