Geometry and lone pairs of two molecules of the same type compared (CH4 and SiCl4, NH3 and PCl3)

1. A.
   Both have same geometry with two lone pair of electrons each.
2. B.
   Both have different geometry with one lone pair of electrons each.
3. C.
   Both have same geometry with no lone pair of electrons each.
4. D.
   Both have different geometry with no lone pair of electrons each.

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1. A.
   Both have trigonal pyramidal geometry and one lone pair of electrons on the central atom.
2. B.
   Both have tetrahedral geometry and one lone pair of electrons on the central atom.
3. C.
   Both have trigonal pyramidal geometry and no lone pair of electrons on the central atom.
4. D.
   Both have trigonal bipyramidal geometry and only $\mathrm{NH_3}$ has one lone pair of electrons on the central atom.

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