NEET-XII-Chemistry
exam-2 year:2016
- #139Among the following which one is a wrong
statement?
(1) ``SeF_4`` and ``CH_4`` have same shape
(2) ``I_3^+`` has bent geometry
(3) ``PH_5`` and ``BiCl_5`` do not exist
(4) ``p\pi-d\pi`` bonds are present in ``SO_2``digAnsr: 1Ans : (1)
Sol. (1) SeF4 -sp3d, lp = 1, shape = see-saw
CH4 -sp3, lp = 0, shape =tetrahedral
(2) +
3I -sp
3, lp =2, shape = bent/angular
(3) PH5 = d-orbital contraction absent
BiCl5 = due to inert pair effect
(Bi+5 act as OA, Cl- act as RA)
(4) SO2 : O=S=O
P-d, P-P both type bonds are present