VSEPR and molecular shapes
Why this is asked: Shape isn't the same as electron-pair geometry: NH₃ and H₂O both have a tetrahedral arrangement of electron pairs, but lone pairs are dropped when naming the shape (pyramidal, bent). The repulsion order lone pair–lone pair > lone pair–bond pair > bond pair–bond pair is why NH₃'s bond angle (107°, one lone pair) is squeezed less than H₂O's (104.5°, two lone pairs).
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Identify the correct orders against the property mentioned:
A. — dipole moment
B. — number of lone pairs on the central atom
C. O–H > C–H > N–O — bond length
D. — bond enthalpy
Choose the correct answer from the options given below:
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Match List I with List II.
List I (Compound) List II (Shape/geometry) A. I. Trigonal pyramidal B. II. Square planar C. III. Octahedral D. IV. Square pyramidal Choose the correct answer from the options given below:
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