Assertion . SeCl_(4)does not have a tetrahedral structure . Resason . Se in SeCl_(4) has two lone pairs .

Assertion . SeCl_(4)does not have a tetrahedral structure . Resason .

1.	Assertion . SeCl_(4)does not have a tetrahedral structure . Resason . Se in SeCl_(4) has two lone pairs .
Answer» If both assertion and reason are correct, and reason is the correct explanation of the assertion. If both assertion and reason are correct , but reason is not the correct explanation of the assertion. If assertion is correct, but reason is incorrect . If both assertion and reason are incorrect. Solution :`SeCl_(4)` has distorted trigonal bipyramidal structrue Hence, assertion is ture . Correct R . Se in `SeCl_(4)` has one LONE pair Se has the outer shell electronic configuration ` 4s^(2) 4p_(x)^(2) 4p_(y)^(1) 4p_(z)^(1) ` or in theexcited state it is` 4s^(2) 4p_(x)^(1) p_(x)^(1) 4p_(y)^(1) 4p_(z)^(1) 4d^(1)`. itundergoes `SP^(3) d ` HYBRIDIZATION . In the trigonal bipyramidal structure, one position of the triangular base is occupied by one lone pair . The distortion in shape is due to the presence of this lone pair .