What are postulates of vsepr theory?

Answer 1

1: Both the lone pairs asa well as the bond pairs participate in determining the geometery of the molecules 2: The electron pairs are arranged around the central polyvalent atom so as to remain at a miximum distance apart to avoid repulsions 3: The electron pairs of lone pairs occupy more space then the bond pairs

from ncert:-

1)The shape of a molecule depends upon

the number of valence shell electron pairs

(bonded or nonbonded) around the central

atom.

2)Pairs of electrons in the valence shell repel

one another since their electron clouds are

negatively charged.

3)These pairs of electrons tend to occupy

such positions in space that minimise

repulsion and thus maximise distance

between them.

3)The valence shell is taken as a sphere with

the electron pairs localising on the

spherical surface at maximum distance

from one another.

4)A multiple bond is treated as if it is a single

electron pair and the two or three electron

pairs of a multiple bond are treated as a

single super pair.

5)

Where two or more resonance structures

can represent a molecule, the VSEPR

model is applicable

Answer 2

pairs of electrons repel other pairs of electrons

Answer 3

electrons repel each other as much as possible

Answer 4

VSEPR is the acronym for valence shell electron pairs repulsion.

Answer 5

pairs of electrons repel other pairs