Which of the following sets has all the species that do not follow octet rule?
A
CO,PCl5,PCl3,AlCl3
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B
CO,B2H6,NH3,H2O
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C
AlCl3,BF3,PCl5,SF6
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D
H2O,NH3,CO2,AlCl3
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Solution
The correct option is CAlCl3,BF3,PCl5,SF6 BF3,AlCl3 are electron deficient molecules while in PCl5 and SF6 molecules P and S possess more than 8 electrons in their valence shells.