Multiple choice Which of the following sets is of electron deficient molecules? IF7, F2-2 and XeF6 XeOF4, XeO2F2 and ICl4- SF6, PCl5 and SnCl6 BCl3, AlCl3 and PCl3 B2H6, BeCl2 and BCl3 Reveal answer Fill a bubble to check yourself E Correct answer Explanation This option is correct because boron and beryllium forms electron deficient compounds, so B2H6, BeCl2 and BCl3 all are electron deficient molecules.