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21-01-2020
Chemistry

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If a central atom has four groups attached to it, the geometry about the central atom is: a) triangular. b) linear. c) pyramidal. d) tetrahedral.

Respuesta :

21-01-2020

Answer:

d) tetrahedral

Explanation:

Given that the central atom is attached to the four group.

Number of bond pairs = 4

Number of lone pairs = 0

The formula is [tex]AB_4[/tex].

According to VSEPR theory,

The central atom has 4 bond pairs and 0 lone pair. Hybridization is sp³. The geometry is tetrahedral which has an angle of 109.5°.

Methane, [tex]CH_4[/tex] posses a tetrahedral geometry as four atoms of hydrogen are attached to the central atom which is carbon.

Hence. D option is correct.

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