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Question

Match the species in Column I with the shape in Column II.
Column IColumn IIi.OSF2p.Tetrahedralii.O2SF2q.Lineariii.XeF4r.Square planariv.ClO−4s.Trigonal pyramidalv.I−3t.See - saw

A
is, iip, iiir, ivp, vq
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B
is, iip, iiir, ivq, vt
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C
is, iip, iiir, ivt, vq
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D
iq, iir, iiis, ivt, vp
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Solution

The correct option is A is, iip, iiir, ivp, vq
(i)OSF2

steric number = (6+2)/2=4 so, sp3 - hybridised S atom, due to the presence of one lone pair shape is trigonal pyramidal. (i)(s)
(ii)O2SF2

steric number = (6+2)/2=4 so, sp3 - hybridised S atom, the shape and geometry is tetrahedral
(ii)(p)
(iii)XeF4

steric number = (8+4)/2=6 so, sp3d2 - hybridised Xe - atom.
Two lone pairs are placed above and below the plane so, shape is square planar (iii)(r)

(iv)ClO4

steric number = (7+1)/2=4 so, sp3 - hybridised Cl atom, tetrahedral. (iv)(p)

(v) I3

steric number = (7+2+1)/2=5 so, sp3d - hybridised I, three lone pairs at equatorial position hence linear shape
(v)(q)

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