The number of molecules from the following which contain only two lone pair of electrons is _____________ H 2 O , N 2 , CO , XeF 4 , NH 3 , NO , CO 2 , F 2

Step-by-step solution

The lone pair of electrons can be identified by drawing structure of the given moleules as follows, The number of molecules having only 2 lone pair of electrons =   3 Which are H 2 O , N 2 and CO . XeF 4 have 2 lone pairs on central atom, but we are asked about lone pair in molecule