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Shape and Geometry Using VSEPR

Why does the ...

Question

Why does the presence of a lone pair change the shape of the molecule?

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Solution

Due to presence of lone pair of electrons in a molecules shape of the molecule changes as there will be repulsion between lone pair and lone pair, lone pair and bond pair also.

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Q. If true enter 1, else enter 0.
Presence of lone pair on central atom of a molecule although ignored in the identification of shape of molecule but they distort the shape of a molecule so as to reduce lone pair-bond pair repulsion.

Q. In which of the following molecules, does the presence of a lone pair affect the bond angle?

Q. The correct statement about

C l F_{3}

Q. The presence of lone pair in

N H_{3}

can change its:

Q. Although the number of bond pair of electrons in the valence shell of phosphorus in a

P C l_{3}

molecule is 3, its shape is not trigonal planar. due to Presence of lone pair of electrons on phosphorous.

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