Question

Use VSEPR theory to predict the shape and the bond angles for the following molecules:
(i) PCl5
(ii) SF6

Answer 1

Answer:

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PCl

5

: P(G.S)=1s

2

2s

2

2p

6

3s

2

3p

3

P(E.S)=1s

2

2s

2

2p

6

3s

1

3p

3

One s , three p & one d orbitals of same shell participate to give sp

3

d hybridisation.

Shape: Trigonal bipyramidal.

Figure-1 represents the shell diagram.

Figure-2 represents the shape .

NH

3

:N(G.S)=1s

2

2s

2

2p

3

N(E.S)=1s

2

One s , three p participate to give sp

3

hybridisation.

Shape: Pyramidal

Figure-3 represents the shell diagram.

Figure-4 represents the shape .