Draw the structure of `AB_(2), AB_(3), AB_(3)L` type of molecules with example.

Explanation

(i) `AB_(2)` : Number ot bond pairs = 2
Shape = Linear
Example : `BeCl_(2)`
(ii) `AB_(3)` : Number of bond pairs = 3
Shape = Tirgonal planar
Example : `BF_(3)`
(iii) `AB_(2)L` : Number of bond pairs = 2
Number of lons pairs = 1
Shape = Bent (or) inverted V shape
Example : `NH_(3)`
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